Liabilities / Assets
28th percentile
Higher debt load relative to assets than 28% of similar nonprofits.
EIN 23-7223041 • 501(c)3 • Boulder, CO
Profile
Historic boulder saves important places and buildings through advocacy, education, alliances and action.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
28th percentile
Higher debt load relative to assets than 28% of similar nonprofits.
Liabilities / Revenue
32nd percentile
Higher debt load relative to revenue than 32% of similar nonprofits.
Net Margin
91st percentile
Higher net margin than 91% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
82nd percentile
Faster asset growth than 82% of similar nonprofits.
Revenue Growth
91st percentile
Faster revenue growth than 91% of similar nonprofits.
Assets
Up$1,157,530
Up $309,912 (+37%) from 2023
Liabilities
Up$5,455
Up $5,064 (+1295%) from 2023
Net Assets
Up$1,152,075
Up $304,848 (+36%) from 2023
Revenue
Up$325,467
Up $180,447 (+124%) from 2023
Expenses
Up$146,493
Up $14,597 (+11%) from 2023
Net Income
Up$178,974
Up $165,850 (+1264%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
Historic boulder saves important places and buildings through advocacy, education, alliances and action.
Historic boulder fosters the spirit and promotes the benefits of preservation through education, advocacy, rehabilitation and celebration.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $786,779 | $850,500 | ▲ $63,721 |
| Cash and Non-Interest-Bearing Accounts | $46,599 | $282,794 | ▲ $236,195 |
| Pledges and Grants Receivable | - | $9,931 | - |
| Accounts Receivable | $1,997 | - | - |
| Savings and Temporary Cash Investments | - | $868 | - |
| Total Assets | $847,618 | $1,157,530 | ▲ $309,912 |
| Other Assets Total | $12,243 | $13,437 | ▲ $1,194 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $366 | $5,455 | ▲ $5,089 |
| Other Liabilities | $25 | - | - |
| Total Liabilities | $391 | $5,455 | ▲ $5,064 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $847,227 | $1,152,075 | ▲ $304,848 |
| Total Net Assets Fund Balance | $847,227 | $1,152,075 | ▲ $304,848 |
| Total Liabilities and Net Assets / Fund Balance | $847,618 | $1,157,530 | ▲ $309,912 |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2024 | $799,022 | - | ▲ $152,561 | $-85,829 | $863,506 |
| 2023 | $673,440 | - | ▲ $127,485 | - | $799,022 |
| 2022 | $821,917 | - | ▼ $131,521 | - | $673,440 |
| 2021 | $773,363 | - | ▲ $55,405 | - | $821,917 |
| 2020 | $725,594 | - | ▲ $61,527 | $-7,500 | $773,363 |
| Name | Title | Full / Part Time | Base | Total |
|---|---|---|---|---|
| Leonard Segel | Executive Di | PT | $42,120 | $42,120 |
| Melanie Julian Muckle | Administrato | PT | $37,520 | $37,520 |
| Name | Title |
|---|---|
| PATRICK O'ROURKE | President |
| Cheryl Gray | Member |
| Francine Mandel Sheets | Member |
| James Lindberg | Member |
| Kathryn Howes Barth | Member |
| Kim Dunning | Member |
| Laurie Friedeman | Member |
| Linda Haertling | Member |
| Michael Kercheval | Member |
| Ryker Stark | Member |
| Susan Morea | Member |
| Tim Plass | Member |
| Robert Muckle | Past Preside |
| Kathy Buergert | Secretary |
| Mary Ellis | Secretary |
| Trudy Gannon | Treasurer |
| Steve Wallace | Vice Preside |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $86,210 |
| Other Expenses | $60,283 |
| Total Fundraising Expense | $8,988 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Current Officers, Directors, Trustees, and Key Employees | $66,637 | $7,477 | $5,526 | $79,640 |
| Office Expenses | $9,543 | $2,782 | $2,375 | $14,700 |
| Payroll Taxes | $2,730 | $3,840 | - | $6,570 |
| Information Technology | $1,664 | $2,866 | - | $4,530 |
| Insurance | $1,578 | $1,485 | - | $3,063 |
| Occupancy | - | $1,548 | - | $1,548 |
| Fees for Services Other | - | - | $1,087 | $1,087 |
| Other Expenses | $374 | $520 | - | $894 |
| Fees for Services Accounting | - | $850 | - | $850 |
| Conferences and Meetings | $620 | - | - | $620 |
| All Other Expenses | $418 | - | - | $418 |
| Travel | $28 | - | - | $28 |
| Total Functional Expenses | $116,137 | $21,368 | $8,988 | $146,493 |
| Line Item | Amount |
|---|---|
| Fundraising Gross Income | $6,520 |
| Fundraising Direct Expenses | $4,720 |
| Professional Fundraising Fees | $0 |
“Melanie julian muckle robert muckle administrato past pres. Family”
“The 990 was sent to the full board via email for review prior to filing with the irs.”
“Board members are asked annually whether any potential financial conflicts exist. The organization avoids involvement in projects which may create a conflict of interest.”
“Governing documents and financial statements are available upon request. The form 990 is also available at candid.org and at coloradogives.org.”
“Staff visits each easement site to check compliance with easement terms.”
“Historic boulder does not include information about the conservation easements it holds in its financial statements.”
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 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 366 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 5455 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 1997 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | HISTORIC BOULDER FOSTERS THE SPIRIT AND PROMOTES THE BENEFITS OF PRESERVATION THROUGH EDUCATION, ADVOCACY, REHABILITATION AND CELEBRATION. |
| IRS990/AllOtherContributionsAmt | 0 | 195107 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 418 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 418 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | MELANIE MUCKLE |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 3034445192 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1200 PEARL STREET STE 314 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | BOULDER |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CO |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 80302 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 46599 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 282794 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 5526 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 7477 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 66637 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 79640 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 620 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 620 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | true |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/ContriRptFundraisingEventAmt | 0 | 8305 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 247644 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 27092 |
| IRS990/CYOtherExpensesAmt | 0 | 60283 |
| IRS990/CYOtherRevenueAmt | 0 | 2040 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 48691 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 178974 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 86210 |
| IRS990/CYTotalExpensesAmt | 0 | 146493 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 8988 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 325467 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/Desc | 0 | EDUCATION OUTREACH: HISTORIC BOULDER PRODUCED 33 EDUCATIONAL EVENTS HIGHLIGHTING THE VALUE OF HISTORIC PRESERVATION IN OUR COMMUNITY. WE PRODUCED LIVE ARCHITECTURAL HISTORY TOURS AT NCAR, MID-CENTURY MODERN HOMES, PEARL STREET, "LITTLE RECTANGLE" (HISTORIC BLACK OWNED HOMES), AND AN ART & ARCHITECTURE TOUR IN A PRIVATE HOME. LECTURES AND PANELS INCLUDED: CREATING HISTORIC DISTRICTS, STREET NAMES OF BOULDER, IMPACT OF THE FEDERAL LABS ON BOULDER, FREDERICK LAW OLMSTED AND EARLY CITY IMPROVERS, CENTRAL PARK LANDMARKS, AND MODERN ARCHITECTURE. THESE WERE PRESENTED AT THE ROTARY CLUB, UNIVERSITY OF COLORADO, HARVARD GSD REUNION, FRASIER SENIOR LIVING, ACADEMY SENIOR LIVING, AND THE MUSEUM OF BOULDER. OUR HISTORY HIKES HIGHLIGHTED HISTORIC STRUCTURES ON OPEN SPACE. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | true |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 2 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 45275 |
| IRS990/FamilyOrBusinessRlnInd | 0 | true |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 850 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 850 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 1087 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 1087 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 20.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 20.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| 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/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/OfficerInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 7 | 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | LEONARD SEGEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | MELANIE JULIAN MUCKLE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | PATRICK O'ROURKE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | STEVE WALLACE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | KATHY BUERGERT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | TRUDY GANNON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | ROBERT MUCKLE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | KATHRYN HOWES BARTH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | SUSAN MOREA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | MICHAEL KERCHEVAL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | FRANCINE MANDEL SHEETS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | KIM DUNNING |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | JAMES LINDBERG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | TIM PLASS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | RYKER STARK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | LAURIE FRIEDEMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | CHERYL GRAY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | MARY ELLIS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | LINDA HAERTLING |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 42120 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 37520 |
| 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 | 0 |
| 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 | EXECUTIVE DI |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | ADMINISTRATO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | VICE PRESIDE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | PAST PRESIDE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | MEMBER |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1972 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/FundraisingAmt | 0 | 8305 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 4720 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 6520 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 13 |
| IRS990/GovernmentGrantsAmt | 0 | 26189 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 330187 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 240 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 13 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 2866 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 1664 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 4530 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 1485 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 1578 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 3063 |
| IRS990/InvestmentExpenseAmt | 0 | -2248 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 27092 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 27092 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 786779 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 850500 |
| IRS990/IRPDocumentCnt | 0 | 4 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | CO |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 18043 |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | HISTORIC BOULDER FOSTERS THE SPIRIT AND PROMOTES THE BENEFITS OF PRESERVATION THROUGH EDUCATION, ADVOCACY, REHABILITATION AND CELEBRATION. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 847227 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 1152075 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | 1800 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 1800 |
| IRS990/NetIncomeOrLossGrp/ExclusionAmt | 0 | 240 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 240 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 128122 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 847227 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1152075 |
| IRS990/NoncashContributionsAmt | 0 | 931 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 1548 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 1548 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 2375 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 2782 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 9543 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 14700 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 12243 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 13437 |
| IRS990/OtherExpensesGrp/Desc | 0 | PROGRAM EVENTS |
| IRS990/OtherExpensesGrp/Desc | 1 | HIGHLAND CLUB MEMBERSHIP |
| IRS990/OtherExpensesGrp/Desc | 2 | GIFTS AND AWARDS |
| IRS990/OtherExpensesGrp/Desc | 3 | DUES AND SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 520 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 26708 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 4200 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 1637 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 374 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 26708 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 4200 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 1637 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 894 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 25 |
| IRS990/OtherWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 3840 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 2730 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 6570 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 9931 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfficerNm | 0 | TIM PLASS |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | HISTORIC TOURS AND HIKES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 48691 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 48691 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | OUR SIGNATURE EVENTS, MEET THE SPIRITS IN OCTOBER AND HOMES FOR THE HOLIDAYS IN DECEMBER, HAVE BECOME BELOVED COMMUNITY TRADITIONS, DRAWING NEARLY 1,600 ATTENDEES BETWEEN THEM. AT MEET THE SPIRITS, 37 SPIRIT ACTORS IN PERIOD COSTUMES PRESENTED BIOGRAPHICAL MONOLOGUES AT THE COLUMBIA CEMETERY, BRINGING THE HISTORY OF BOULDER ALIVE. THE EVENT RAISED OVER 5,200 FOR PRESERVATION WORK IN THE CEMETERY. OUR 38TH ANNUAL "HOMES FOR THE HOLIDAYS" TOUR HIGHLIGHTED FIVE HISTORIC HOMES IN THE UNIVERSITY HILL NEIGHBORHOOD. THE HOUSES SHOWCASED A VARIETY OF ARCHITECTURAL STYLES AND HISTORIES, INCLUDING FOUR HOMES IN THE 'UNIVERSITY PLACE' HISTORIC DISTRICT. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 38122 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 39579 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | PRESERVATION ADVOCACY: HISTORIC BOULDERS PRESERVATION ADVOCACY FOR BOULDERS CENTRAL PARK WAS IN HIGH GEAR IN 2024 AS WE ORGANIZED A 150-YEAR ANNIVERSARY CELEBRATION OF THE PARK AND FOUR PROGRAMS IN PARTNERSHIP WITH THE MUSEUM OF BOULDER INCLUDING TWO FOCUSED ON THE HISTORY OF PEOPLE DISPLACED BY THE PARK. WE DEVELOPED PROGRAMS AND PARTICIPATED IN COLORADO PRESERVATION INC. STATEWIDE CONFERENCE, AS WELL AS THE COMMUNITY WIDE SQUARE NAIL AWARDS. WE REGULARLY TESTIFIED BEFORE THE LANDMARKS BOARD AND CITY COUNCIL. FINALLY, WE SUCCESSFULLY APPLIED TO THE STATE HISTORICAL FUND FOR THE REHABILITATION OF THE FAADE OF THE BOULDER THEATER, WHICH PROJECT WILL BE COMPLETED IN 2025. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 32740 |
| IRS990/ProgSrvcAccomActy3Grp/RevenueAmt | 0 | 3016 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 96826 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 16462 |
| IRS990/PYOtherExpensesAmt | 0 | 52395 |
| IRS990/PYOtherRevenueAmt | 0 | -548 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 32280 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 13124 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 79501 |
| IRS990/PYTotalExpensesAmt | 0 | 131896 |
| IRS990/PYTotalRevenueAmt | 0 | 145020 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 178974 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | false |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 6096 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 868 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 247644 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 96826 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 90356 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 64639 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 60851 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 560316 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 27092 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 16462 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 12512 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 16559 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 7060 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 79685 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 48691 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 32280 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 30126 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 12538 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 3892 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 127527 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearAmt | 0 | 240 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus1YearAmt | 0 | 258 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus2YearsAmt | 0 | 377 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus3YearsAmt | 0 | 277 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/CurrentTaxYearMinus4YearsAmt | 0 | 73 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/TotalAmt | 0 | 1225 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 27092 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 16462 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 12512 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 16559 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 7060 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 79685 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.10000 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.12000 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.89630 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.87900 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 689068 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 296575 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 129364 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 120859 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 77454 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 64816 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 689068 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 323667 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 145826 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 133371 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 94013 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 71876 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 768753 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
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