Liabilities / Assets
7th percentile
Higher debt load relative to assets than 7% of similar nonprofits.
Precomputed percentiles for this filing year versus similar nonprofits in the same peer cohort.
Liabilities / Assets
7th percentile
Higher debt load relative to assets than 7% of similar nonprofits.
Liabilities / Revenue
19th percentile
Higher debt load relative to revenue than 19% of similar nonprofits.
Net Margin
47th percentile
Higher net margin than 47% of similar nonprofits.
Top Officer Pay
38th percentile
Higher top officer pay than 38% of similar nonprofits.
Top officer pay equals 22.8% of source-year revenue.
Asset Growth
39th percentile
Faster asset growth than 39% of similar nonprofits.
Revenue Growth
3rd percentile
Faster revenue growth than 3% of similar nonprofits.
Assets
Down$25,992,889
Down $791,591 (-3.0%) from 2021
Net Assets
Down$25,922,736
Down $798,697 (-3.0%) from 2021
Liabilities
Up$70,153
Up $7,106 (+11%) from 2021
Revenue
Down$912,387
Down $2,081,904 (-70%) from 2021
Expenses
Up$863,511
Up $124,530 (+17%) from 2021
Net Income
Down$48,876
Down $2,206,434 (-98%) from 2021
The mission of mianus river gorge, an independent, not-for-profit organization is to preserve, protect and promote appreciation of the natural heritage of the mianus river watershed through land acquisition and conservation, scientific research & public education.
To preserve, protect and promote appreciation of the natural heritage of the mianus river watershed.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $22,119,213 | $22,124,163 | ▲ $4,950 |
| Investments in Publicly Traded Securities | $4,376,241 | $3,544,951 | ▼ $831,290 |
| Savings and Temporary Cash Investments | $164,006 | $207,382 | ▲ $43,376 |
| Pledges and Grants Receivable | $68,234 | $56,471 | ▼ $11,763 |
| Cash and Non-Interest-Bearing Accounts | $37,023 | $40,674 | ▲ $3,651 |
| Prepaid Expenses and Deferred Charges | $11,990 | $12,342 | ▲ $352 |
| Inventories for Sale or Use | $7,773 | $6,906 | ▼ $867 |
| Total Assets | $26,784,480 | $25,992,889 | ▼ $791,591 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $63,047 | $70,153 | ▲ $7,106 |
| Total Liabilities | $63,047 | $70,153 | ▲ $7,106 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $26,623,062 | $25,803,274 | ▼ $819,788 |
| Net Assets With Donor Restrictions | $98,371 | $119,462 | ▲ $21,091 |
| Total Net Assets Fund Balance | $26,721,433 | $25,922,736 | ▼ $798,697 |
| Total Liabilities and Net Assets / Fund Balance | $26,784,480 | $25,992,889 | ▼ $791,591 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Land | $21,876,202 | - | $21,876,202 |
| Leasehold Improvements | $220,799 | $118,965 | $339,764 |
| Equipment | $27,162 | $103,903 | $131,065 |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2022 | $4,333,251 | - | ▼ $733,806 | $74,777 | $3,524,668 |
| 2021 | $4,952,007 | - | ▲ $600,917 | $1,219,673 | $4,333,251 |
| 2020 | $4,410,359 | - | ▲ $666,355 | $124,707 | $4,952,007 |
| 2019 | $3,609,204 | - | ▲ $801,155 | - | $4,410,359 |
| 2018 | $5,370,862 | - | ▼ $121,066 | $1,640,592 | $3,609,204 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Roderick G Christie | Executive Director | FT | $122,945 | $84,990 | $207,935 |
| Name | Title |
|---|---|
| Timothy W Evnin | Chairman |
| Andre a Hunter | President |
| Christopher Dup Roosevelt | Vice Chairman |
| Alexandra Kotur | Trustee |
| Brian Choi | Trustee |
| Daniel Ryan | Trustee |
| Gerardo Mendez | Trustee |
| Heather Van Wolf | Trustee |
| John S Needham | Trustee |
| Lloyd Gerry | Trustee |
| Nicholas Firth | Trustee |
| Sarah Schwarzschild | Trustee |
| William G Foulke Jr | Trustee |
| Janet Connor | Trustee Thru 02/22 |
| Walter C Weissinger | Trustee Thru 03/22 |
| Piers M Macdonald | Trustee Thru 05/22 |
| Ashley W Schulten | Secretary |
| Kathryn Hoenig | Treasurer |
| Contribution Type | Contribution Count | Reported Amount | Valuation Method |
|---|---|---|---|
| Securities Publicly Traded | 3 | $46,917 | Avg. Selling Price |
| Total Noncash Contributions | 3 | $46,917 | - |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $553,595 |
| Other Expenses | $309,766 |
| Total Fundraising Expense | $78,158 |
| Grants and Similar Amounts Paid | $150 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $218,092 | $32,547 | $38,195 | $288,834 |
| Current Officers, Directors, Trustees, and Key Employees | $119,257 | $14,035 | $14,995 | $148,287 |
| Office Expenses | $35,258 | $2,476 | $7,133 | $44,867 |
| Pension Plan Contributions | $37,190 | $1,956 | $4,165 | $43,311 |
| Payroll Taxes | $24,248 | $11,389 | $1,102 | $36,739 |
| Other Employee Benefits | $24,482 | $10,858 | $1,084 | $36,424 |
| Depreciation Depletion | $25,850 | $3,231 | $3,231 | $32,312 |
| Insurance | $18,925 | $7,289 | $705 | $26,919 |
| Fees for Service Investment Mgmnt Fees | - | $26,001 | - | $26,001 |
| Fees for Services Accounting | - | $18,200 | - | $18,200 |
| Occupancy | $18,093 | - | - | $18,093 |
| Fees for Services Other | $9,991 | $1,140 | $100 | $11,231 |
| Fees for Services Legal | $7,068 | - | - | $7,068 |
| Information Technology | $2,058 | $1,764 | $2,058 | $5,880 |
| Other Expenses | $41,048 | $456 | $867 | $867 |
| Travel | $461 | - | - | $461 |
| Grants to Domestic Orgs | $150 | - | - | $150 |
| Total Functional Expenses | $647,248 | $138,105 | $78,158 | $863,511 |
| Line Item | Amount |
|---|---|
| Total Expenses per Form 990 | $863,511 |
| Expenses per Audited Statements | $837,510 |
| Total Expenses per Audited Statements | $837,510 |
| Expenses Not Reported on Financial Statements | $26,001 |
| Expenses Not Reported on Form 990 | $0 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“The organization has its form 990 prepared by an outside accounting firm. It is reviewed by the audit committee and the executive director. Any questions are addressed by the professional accountant, in consultation with the executive director. The final version is then reviewed by the treasurer and the chairman of the board. A complete copy is distributed electronically to all trustees before filing with the irs.”
“The directors, members, and officers of the corporation are covered under the conflict of interest policy. Any director or member having a possible conflict of interest on any matter should make disclosure of such interests to the other directors or members. In the event of a conflict of interest, the director or member should not participate in the consideration or discussion of nor vote on the matter, but such director or member shall be counted in determining the quorum for the meeting. In the discretion of the chair of the board of directors, a director or member with a conflict of interest may be required to leave that portion of a meeting that considers the matter as to which there is a conflict. The minutes of the meeting should reflect the making of the disclosure, the abstention from discussion and voting, the quorum situation, and whether the director or member was present or absent when the matter was considered. Any officer of the corporation having a possible conflict of interest on any matter before such officer for administrative or other action shall report such conflict to the executive director and the chair of the board of trustees. In the case of the executive director or the chair, such possible conflict shall be reported to the executive committee or the full board and the officer shall abstain from taking any administrative or other action on such matter.”
“Compensation for the executive director is determined by the following process: the board of trustees at their december meeting have an executive session where staff are asked to leave and the board discusses bonuses and compensation for the following year. At this time, the chairman and president recommend to the board the level of compensation for the executive director and the board either approves it or modifies it and then approves. Every other year, the chairman researches comparative salaries at other organizations to make appropriate adjustments if necessary. The approval of the executive director's compensation is documented the board meeting minutes. The last compensation review process was undertaken in 2022.”
“The organization makes its form 1023 and form 990 available for public inspection as required under section 6104 of the internal revenue code. The return is also posted on guidestar.org and other similar types of websites. In addition, the financial statements, conflict of interest policy, articles of incorporation and by-laws are also available upon written request or by calling the organization directly. The form 990 and the financial statements are also available on the organization's website.”
“In 2022, the most significant activities included the following land protection: mrg has added 194 acres to the preserve and 26 acres of conservation easements in just the last ten years, but we had not added stewardship capacity. In 2022 we were able to expand the part-time preserve steward position to full-time. Research & education: this year has been an especially productive one for our research program, as our staff and students have co-authored and contributed to six scientific papers that were published in 2022. Public programs and outreach: mianus river gorge led an array of walks, including the always-popular nighttime owl walks and several special walks to protected areas not normally open to the public. We held a community river clean-up to help keep the mianus river classified as aa-special, a clean drinking water supply for many. Other activities: in early july, staff, interns, and volunteers completed the nearly one-mile yellow trail, also known as the pond trail.”
“The organization has a committee that is responsible for the oversight of the audit of its financial statements and selection of an independent accountant. The process has not changed from the prior year.”
“The gorge has a written management plan which includes an entire part on conservation easement monitoring. All land (owned or managed under contract) and easements are monitored annually. The director of land managment does the monitoring. With respect to monitoring easements, the monitor finds a convenient date for the property owner for the monitoring visit and the property owner is invited to participate if he/she so desires. A brief report is written after the monitoring visit and kept in the file per record retention policy. The monitoring procedure is quite simple since all mrg easements are small enough that the entire property can be easily covered in a few hours using the existing maps and photo points of each easement. Photos are sometimes taken while monitoring if there have been changes to the property and/or any violations have occurred.”
“Conservation easements are not reflected in the financial statements either as assets or liabilities. The acquisition costs and other costs associated with conservation easements are expensed in the period incurred.”
“The gorge maintains various board-designated funds whose purpose is to provide long term support for its charitable programs. In classifying such funds for financial statement purposes as either permanently restricted, temporarily restricted or unrestricted net assets, the board looks to explicit directions of the donor where applicable and the provisions of the laws of new york state. Land acquisition fund represents amounts set aside to provide for future land purchases totaling $26,727 and $46,245 as of december 31, 2022 and 2021. Land enforcement fund represents amounts set aside to provide funds to cover the cost of enforcing its easements and track stewardship and enforcement costs. The adequacy of the fund, which totals $257,932 and $265,000 as of december 31, 2022 and 2021, is reviewed by the board of trustees when it approves the annual budget. Land stewardship fund represents amounts set aside to provide funds to cover the cost of enforcing stewarding the land and easements, over the long term. The adequacy of the fund, which totals $530,000 and $530,000 as of december 31, 2022 and 2021, is reviewed by the board of trustees when it approves the annual budget. Reserve fund represents a $50,000 reserve designated for future periods. Board designated for long-term support represents the fair value of investments net of amounts designated for specific purposes as set out above, as well as funds with donor restrictions for various identified programs. In addition, excess funds per the spending policy not appropriated for expenditure will be held for long term support.”
“The gorge recognizes the effect of tax positions only when they are more likely than not to be sustained. Management has determined that the gorge had no uncertain tax positions that would require financial statement recognition or disclosure.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 63047 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 70153 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TO PRESERVE, PROTECT AND PROMOTE APPRECIATION OF THE NATURAL HERITAGE OF THE MIANUS RIVER WATERSHED. |
| IRS990/AllOtherContributionsAmt | 0 | 654332 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | TINA BARRETT |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 9142343455 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 167 MIANUS RIVER ROAD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | BEDFORD |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 10506 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 37023 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 40674 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 14995 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 14035 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 119257 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 148287 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 1 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 738081 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 150 |
| IRS990/CYInvestmentIncomeAmt | 0 | 140143 |
| IRS990/CYOtherExpensesAmt | 0 | 309766 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 34163 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 48876 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 553595 |
| IRS990/CYTotalExpensesAmt | 0 | 863511 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 78158 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 912387 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 3231 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 3231 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 25850 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 32312 |
| IRS990/Desc | 0 | RESEARCH AND EDUCATION: TO PROPERLY FULFILL ITS MISSION TO PROTECT THE UNIQUE RESOURCES OF THE GORGE AND THE MIANUS RIVER WATERSHED, THE MRG CONTINUES ITS TRADITION OF RESEARCH-BASED MANAGEMENT. THE COMPLEXITY AND INTERCONNECTEDNESS OF ECOLOGICAL SYSTEMS REQUIRES THAT ALL RESEARCH EFFORTS BE COORDINATED AND COMPLIMENTARY. TO THAT END, THE MRG HAS ESTABLISHED A LONG-TERM RESEARCH PROGRAM THAT ATTRACTS YOUNG MINDS TO TACKLE DIFFICULT ECOLOGICAL QUESTIONS AND FOCUSES THEIR EFFORTS TOWARD THE ULTIMATE GOAL OF BETTER MANAGEMENT PRACTICES.TO EFFECTIVELY MANAGE THE DELICATE AND UNIQUE ECOSYSTEMS WITHIN THE GORGE, WE UNDERTAKE SCIENTIFIC RESEARCH TO: 1) PROVIDE ANSWERS TO DIFFICULT ECOLOGICAL QUESTIONS ASSOCIATED WITH THE IMPACT OF THE ENCROACHING SUBURBAN ENVIRONMENT 2) AID IN THE DEVELOPMENT OF STRATEGIES TO MITIGATE SUCH INFLUENCES AND, 3) PROVIDE A LIBRARY OF INFORMATION THAT CAN BE SHARED WITH OTHER PRESERVES, WILDLIFE REFUGES, BOTANICAL PRESERVES THAT MIGHT BE STRUGGLING WITH SIMILAR LAND MANAGEMENT ISSUES. IN THIS WAY, THE GORGE IS AN INVALUABLE PROVING GROUND FOR INNOVATIVE MANAGEMENT SOLUTIONS THAT HAVE AN IMPACT WELL BEYOND THE BOUNDARIES OF THE GORGE. ACTIVITIES REVOLVE AROUND THREE KEY PROGRAMS: THE RESEARCH ASSISTANTSHIP PROGRAM (RAP), THE WILDLIFE TECHNICIAN PROGRAM (WTP) AND THE COLLEGE INTERN PROGRAM IN SUBURBAN ECOLOGY (CISE). THE RESEARCH ASSISTANTSHIP PROGRAM (RAP) OFFERS FUNDING FOR GRADUATE-LEVEL RESEARCH IN THE FIELDS OF ECOLOGY, WILDLIFE BIOLOGY, AND CONSERVATION BIOLOGY. RAP IS PART OF A LARGER EFFORT BY OUR STAFF AND LOCAL BIOLOGISTS TO BETTER UNDERSTAND HOW TO MANAGE AND RESTORE THE NATIVE BIODIVERSITY OF SUBURBAN PRESERVES. EACH RAP RECIPIENT RECEIVES A YEARLY STIPEND (THANKS TO SUPPORT FROM THE A.E. CHARITABLE FOUNDATION) OF $8,000 TOWARD A SPECIFIC PROJECT ADDRESSING SOME MAJOR ECOLOGICAL QUESTION THAT NEEDS TO BE ANSWERED TO PROPERLY MANAGE THE GORGE. EACH RAP RECIPIENT IS ALSO REQUIRED TO MENTOR A HIGH SCHOOL STUDENT IN OUR WTP PROGRAM IN DESIGNING AND CONDUCTING THEIR THREE-YEAR RESEARCH PROJECT.WILDLIFE TECHNICIAN PROGRAM (WTP) OUR WILDLIFE TECHNICIAN PROGRAM USES HIGH SCHOOL STUDENTS FROM WESTCHESTER AND FAIRFIELD COUNTIES TO EXPAND OUR RESEARCH ACTIVITIES AND PROVIDE MORE INFORMED MANAGEMENT AND RESTORATION DECISIONS. THE WTP IS A COMPETITIVE INTERNSHIP PROGRAM SELECTING SOPHOMORE-LEVEL HIGH SCHOOL STUDENTS FROM WESTCHESTER, NY TO WORK ALONGSIDE MRG STAFF, GRADUATE STUDENTS, AND PROFESSIONAL PARTNERS ON INDEPENDENT, MULTI-YEAR ECOLOGICAL RESEARCH PROJECTS. THE PROGRAM HAS BEEN DESIGNED TO COMPLEMENT THE STATE UNIVERSITY OF NEW YORK SCIENCE RESEARCH IN THE HIGH SCHOOL (SRHS) CURRICULUM AND PROVIDES ACCESS TO SCIENTIFIC MENTORS, HANDS-ON FIELD EXPERIENCE, AND IMMERSION INTO REAL-WORLD CONSERVATION PROBLEMS FACING SUBURBAN ECOSYSTEMS. THIS PROGRAM PROVIDES EACH STUDENT WITH A BROAD EXPOSURE TO THE FIELD OF ECOLOGICAL RESEARCH AS WELL AS A CHANCE TO COMPLETE A SPECIFIC STUDENT-DESIGNED RESEARCH PROJECT. EACH STUDENT IS PAIRED WITH A MENTOR, EITHER A GRADUATE RESEARCH ASSISTANT OR A STAFF ECOLOGIST, TO OVERSEE AND COUNSEL THE STUDENT AS HE/SHE DEVISES AND CONDUCTS HIS/HER INDIVIDUAL COURSE OF STUDY. STUDENTS ALSO HAVE ACCESS TO ADVISORS FROM SCIENTIFIC INSTITUTIONS THROUGHOUT THE AREA IF THEY NEED ADDITIONAL RESOURCES BEYOND THOSE AT THE GORGE.OUR GOAL WITH THIS PROGRAM IS TO PURSUE CUTTING-EDGE RESEARCH THAT IS NECESSARY TO PRESERVE THE DELICATE RESOURCES OF THE GORGE WHILE SIMULTANEOUSLY TRAINING A NEW GENERATION OF SCIENTISTS. WE HOPE THEY ALSO GAIN A DEEPER UNDERSTANDING OF OUR NATURAL RESOURCES AND A LIFE-LONG APPRECIATION FOR THE INTRICACIES AND REWARDS OF SCIENTIFIC RESEARCH.THE COLLEGE INTERN PROGRAM IN SUBURBAN ECOLOGY (CISE) OFFERS INTERNSHIPS TO UNDERGRADUATE STUDENTS TO STUDENTS TO STUDY A VARIETY OF ISSUES FACING SUBURBAN PRESERVES. STUDENTS WORK WITH STAFF AND RAP AND WTP STUDENTS. |
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| IRS990/DonatedServicesAndUseFcltsAmt | 0 | 375 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
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| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 119462 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 7 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
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| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 18200 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 7068 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 7068 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 100 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 1140 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 9991 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 11231 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 26001 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 26001 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.30 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.30 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.30 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.30 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.30 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 1.30 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 1.30 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 1.30 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 40.00 |
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| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 13 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 16 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 17 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 78990 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | TIMOTHY W EVNIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | CHRISTOPHER DUP ROOSEVELT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ANDRE A HUNTER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | ASHLEY W SCHULTEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | KATHRYN HOENIG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | JANET CONNOR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | BRIAN CHOI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | NICHOLAS FIRTH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | WILLIAM G FOULKE JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | LLOYD GERRY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | ALEXANDRA KOTUR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | PIERS M MACDONALD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | GERARDO MENDEZ |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | JOHN S NEEDHAM |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | DANIEL RYAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | SARAH SCHWARZSCHILD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | WALTER C WEISSINGER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | HEATHER VAN WOLF |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | RODERICK G CHRISTIE |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 128945 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHAIRMAN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE CHAIRMAN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TRUSTEE THRU 02/22 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | TRUSTEE THRU 05/22 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | TRUSTEE THRU 03/22 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | EXECUTIVE DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1989 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 63177 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 16 |
| IRS990/GovernmentGrantsAmt | 0 | 83749 |
| IRS990/GrantAmt | 0 | 150 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 150 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 150 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 122501 |
| IRS990/GrossReceiptsAmt | 0 | 971711 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 16 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 2058 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 1764 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 2058 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 5880 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 705 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 7289 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 18925 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 26919 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 7773 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 6906 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 76966 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 76966 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 4376241 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 3544951 |
| IRS990/IRPDocumentCnt | 0 | 5 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 222868 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 22119213 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 22124163 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 22347031 |
| IRS990/LegalDomicileStateCd | 0 | NY |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 59324 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | TO PRESERVE, PROTECT AND PROMOTE APPRECIATION OF THE NATURAL HERITAGE OF THE MIANUS RIVER WATERSHED THROUGH LAND ACQUISITION AND CONSERVATION, SCIENTIFIC RESEARCH & PUBLIC EDUCATION. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 26721433 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 25922736 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 63177 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 63177 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | -847948 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 26623062 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 25803274 |
| IRS990/NoncashContributionsAmt | 0 | 46917 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 18093 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 18093 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 7133 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 2476 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 35258 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 44867 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 1084 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 10858 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 24482 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 36424 |
| IRS990/OtherExpensesGrp/Desc | 0 | BLDG AND GROUNDS MAINT. |
| IRS990/OtherExpensesGrp/Desc | 1 | RESEARCH EXPENSES |
| IRS990/OtherExpensesGrp/Desc | 2 | STAFF DEVELOPMENT |
| IRS990/OtherExpensesGrp/Desc | 3 | BOOK |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 1429 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 423 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 2671 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 3 | 867 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 5917 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 846 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 456 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 65077 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 41048 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 72423 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 42317 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 3127 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 867 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 38195 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 32547 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 218092 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 288834 |
| IRS990/OtherWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 1102 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 11389 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 24248 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 36739 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 4165 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 1956 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 37190 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 43311 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 68234 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 56471 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 11990 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 12342 |
| IRS990/PrincipalOfficerNm | 0 | RODERICK CHRISTIE |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 541900 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | RESEARCH |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 34163 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 34163 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | STEWARDSHIP PROGRAMS ENCOMPASS ALL THOSE LAND MANAGEMENT ACTIVITIES ASSOCIATED WITH MAINTAINING THE GORGE FOR PUBLIC USE INCLUDING TRAIL CONSTRUCTION AND REPAIR, PROTECTION OF THE GORGE'S BOUNDARIES, CONTROL OF INVASIVE SPECIES, AND ON-GOING INVENTORY AND MONITORING OF ALL WILDLIFE POPULATIONS, BEYOND THOSE ASSOCIATED WITH THE RESEARCH AND EDUCATION PROGRAM. STEWARDSHIP ACTIVITIES KEEP THE GORGE VIABLE AND ECOLOGICALLY INTACT DESPITE ITS LOCATION IN SUBURBIA AND PROXIMITY TO NEW YORK CITY AND OTHER LARGE METROPOLITAN AREAS. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 188136 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | LAND ACQUISITION CONSISTS OF ACTIVITIES ASSOCIATED WITH LAND PROTECTION WITHIN THE MIANUS RIVER WATERSHED VIA PURCHASE, CONSERVATION EASEMENT OR WORKING WITH LOCAL GOVERNMENT BOARDS TO FOSTER RESPONSIBLE DEVELOPMENT. ACTIVITIES ARE CONDUCTED PRIMARILY BY THE EXECUTIVE DIRECTOR AND THE BOARD OF TRUSTEES AND INCLUDE ADDING LAND AND CONSERVATION EASEMENTS TO EXPAND THE MIANUS RIVER GORGE AS WELL AS PROTECTING OTHER CRITICAL LAND THROUGHOUT THE WATERSHED THAT AFFECT WATER QUALITY AND QUANTITY IN THE MIANUS RIVER (A DRINKING WATER SUPPLY FOR 130,000 PEOPLE). THERE WAS ONE NEW PROPERTY ADDED IN 2022. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 181047 |
| IRS990/ProgSrvcAccomActy3Grp/GrantAmt | 0 | 0 |
| IRS990/ProgSrvcAccomActy3Grp/RevenueAmt | 0 | 0 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 2177839 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 6200 |
| IRS990/PYInvestmentIncomeAmt | 0 | 789447 |
| IRS990/PYOtherExpensesAmt | 0 | 231504 |
| IRS990/PYOtherRevenueAmt | 0 | 23969 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 3036 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 2255310 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 501277 |
| IRS990/PYTotalExpensesAmt | 0 | 738981 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 2994291 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 48876 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 34163 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 164006 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 207382 |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | INSURANCE SETTLEMENT - 2021 AMOUNT: $ 23,966. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | SCHEDULE A, PART II, LINE 10, EXPLANATION OF OTHER INCOME: |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 738081 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 2177839 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 406249 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 796587 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 3588204 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 7706960 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 76966 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 87263 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 110383 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 106422 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 114011 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 495045 |
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Displayed year
2022 • Form 990Detailed filing. Detailed filing data is available for this year.
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