Liabilities / Assets
41st percentile
Higher debt load relative to assets than 41% of similar nonprofits.
EIN 74-6068250 • 501(c)3 • Big Bend National Park, TX
Profile
To promote the national park service's mission in the big bend national park and amistad national recreation area by providing published materials, personnel to aid park service personnel, and financial support for research and national park service projects.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
41st percentile
Higher debt load relative to assets than 41% of similar nonprofits.
Liabilities / Revenue
44th percentile
Higher debt load relative to revenue than 44% of similar nonprofits.
Net Margin
88th percentile
Higher net margin than 88% of similar nonprofits.
Top Officer Pay
56th percentile
Higher top officer pay than 56% of similar nonprofits.
Top officer pay equals 7.3% of source-year revenue.
Asset Growth
87th percentile
Faster asset growth than 87% of similar nonprofits.
Revenue Growth
82nd percentile
Faster revenue growth than 82% of similar nonprofits.
Assets
Up$1,780,073
Up $496,442 (+39%) from 2024
Liabilities
Up$49,320
Up $19,324 (+64%) from 2024
Net Assets
Up$1,730,753
Up $477,118 (+38%) from 2024
Revenue
Up$1,032,193
Up $328,835 (+47%) from 2024
Expenses
Up$555,075
Up $13,015 (+2.4%) from 2024
Net Income
Up$477,118
Up $315,820 (+196%) from 2024
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
To enrich the visitor experience through education of the public and the preservation of big bend national park and the rio grande wild & scenic river.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Savings and Temporary Cash Investments | $374,561 | $914,026 | ▲ $539,465 |
| Inventories for Sale or Use | $344,987 | $456,719 | ▲ $111,732 |
| Cash and Non-Interest-Bearing Accounts | $432,444 | $287,635 | ▼ $144,809 |
| Land, Buildings, and Equipment, Net | $120,846 | $116,055 | ▼ $4,791 |
| Prepaid Expenses and Deferred Charges | $3,165 | $0 | ▼ $3,165 |
| Accounts Receivable | $7,628 | $2,408 | ▼ $5,220 |
| Other Notes and Loans Receivable, Net | - | $0 | - |
| Pledges and Grants Receivable | - | $0 | - |
| Receivable From Disqualified Prsn | - | $0 | - |
| Receivables From Officers Etc | - | $0 | - |
| Investments Other Securities | - | $0 | - |
| Investments Program Related | - | $0 | - |
| Investments in Publicly Traded Securities | - | $0 | - |
| Intangible Assets | - | $0 | - |
| Total Assets | $1,283,631 | $1,780,073 | ▲ $496,442 |
| Other Assets Total | - | $3,230 | - |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $29,996 | $49,320 | ▲ $19,324 |
| Total Liabilities | $29,996 | $49,320 | ▲ $19,324 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $1,253,635 | $1,730,753 | ▲ $477,118 |
| Total Net Assets Fund Balance | $1,253,635 | $1,730,753 | ▲ $477,118 |
| Total Liabilities and Net Assets / Fund Balance | $1,283,631 | $1,780,073 | ▲ $496,442 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Leasehold Improvements | $107,786 | $126,270 | $234,056 |
| Equipment | $8,269 | $72,625 | $80,894 |
| Name | Title | Full / Part Time | Base | Total |
|---|---|---|---|---|
| Julie Childs | Executive Director | FT | $75,000 | $75,000 |
| Name | Title |
|---|---|
| Jim Bishop | Chairman |
| Ben English | Vice Chairman |
| Bill Stevens | Director |
| Catherine Eaves | Director |
| John Mcardle | Director |
| Laurence Parent | Director |
| Greg Henington | Sec / Treas |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $301,792 |
| Other Expenses | $224,514 |
| Grants and Similar Amounts Paid | $28,769 |
| Professional Fundraising Fees | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $147,845 | $21,413 | - | $169,258 |
| Current Officers, Directors, Trustees, and Key Employees | $15,000 | $60,000 | - | $75,000 |
| Fees for Services Accounting | - | $37,062 | - | $37,062 |
| Information Technology | $14,015 | $22,867 | - | $36,882 |
| Insurance | $11,501 | $18,766 | - | $30,267 |
| Grants to Domestic Orgs | $28,769 | - | - | $28,769 |
| Other Employee Benefits | $15,908 | $7,957 | - | $23,865 |
| Depreciation Depletion | $8,319 | $13,572 | - | $21,891 |
| Payroll Taxes | $12,330 | $6,240 | - | $18,570 |
| Pension Plan Contributions | $9,965 | $5,134 | - | $15,099 |
| Occupancy | $5,627 | $9,180 | - | $14,807 |
| Travel | $8,197 | $806 | - | $9,003 |
| Office Expenses | - | $8,667 | - | $8,667 |
| Advertising | $4,922 | - | - | $4,922 |
| Other Expenses | $4,896 | $9,965 | - | $4,896 |
| All Other Expenses | $3,394 | - | - | $3,394 |
| Total Functional Expenses | $333,446 | $221,629 | $0 | $555,075 |
| Line Item | Amount |
|---|---|
| Total Expenses per Audited Statements | $581,498 |
| Expenses per Audited Statements | $555,075 |
| Total Expenses per Form 990 | $555,075 |
| Expenses Not Reported on Form 990 | $26,423 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Line Item | Beginning | End | Change |
|---|---|---|---|
| Receivables from Disqualified Persons | - | $0 | - |
| Receivables from Officers, Directors, Trustees, and Key Employees | - | $0 | - |
“Copies of form 990 are provided to members of the board. After review and approval, the form 990 is filed.”
“The board of directors monitors conflicts of interest at its semi-annual board meetings. In addition, the board members are required to fill out conflict of interest forms annually, and disclose any potential conflicts of interest.”
“The independent board of directors determines executive compensation through annual review and consideration of comparative compensation for similar positions in similar organizations.”
“No documents available to the public.”
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 | 29996 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 49320 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 7628 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 2408 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | TO ENRICH THE VISITOR EXPERIENCE THROUGH EDUCATION OF THE PUBLIC AND THE PRESERVATION OF BIG BEND NATIONAL PARK AND THE RIO GRANDE WILD & SCENIC RIVER. |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 4922 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 4922 |
| IRS990/AllOtherContributionsAmt | 0 | 2425 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 3394 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 3394 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | false |
| IRS990/BackupWthldComplianceInd | 0 | false |
| IRS990/BenefitsToMembersGrp/TotalAmt | 0 | 0 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | BIG BEND NATURAL HISTORY ASSN |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 4324772236 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | PO BOX 196 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | BIG BEND NATIONAL PARK |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | TX |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 79834 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 432444 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 287635 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 60000 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 15000 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 75000 |
| IRS990/CompDisqualPersonsGrp/TotalAmt | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CostOfGoodsSoldAmt | 0 | 611521 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 3050 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 28769 |
| IRS990/CYInvestmentIncomeAmt | 0 | 24190 |
| IRS990/CYOtherExpensesAmt | 0 | 224514 |
| IRS990/CYOtherRevenueAmt | 0 | 1004953 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 477118 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 301792 |
| IRS990/CYTotalExpensesAmt | 0 | 555075 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 1032193 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 13572 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 8319 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 21891 |
| IRS990/Desc | 0 | BOOKS AND NATURAL HISTORY-RELATED MERCHANDISE SALES WHICH PROVIDED GUIDES, INFORMATIONAL AIDS, AND EDUCATIONAL MATERIALS. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 11 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 243090 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 37062 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 37062 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesLobbyingGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesProfFundraising/TotalAmt | 0 | 0 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form1098CFiledInd | 0 | false |
| IRS990/Form8282FiledCnt | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form8899Filedind | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 0.50 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 0.50 |
| 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/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | 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/PersonNm | 0 | JULIE CHILDS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | JIM BISHOP |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | BEN ENGLISH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | GREG HENINGTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | CATHERINE EAVES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | LAURENCE PARENT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | BILL STEVENS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | JOHN MCARDLE |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 75000 |
| 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 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | Executive Dir. |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Chairman |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Vice Chairman |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Sec / Treas |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | Director |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1965 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 7 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 28769 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 28769 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 1643714 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 1607286 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IncmFromInvestBondProceedsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 7 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 22867 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 14015 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 36882 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 18766 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 11501 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 30267 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 0 |
| IRS990/InterestGrp/TotalAmt | 0 | 0 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 344987 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 456719 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 24190 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 24190 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
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| IRS990/InvestmentsProgramRelatedGrp/EOYAmt | 0 | 0 |
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| IRS990/IRPDocumentCnt | 0 | 4 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
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| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 116055 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 314950 |
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| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 625 |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | TO ENRICH THE VISITOR EXPERIENCE THROUGH EDUCATION OF THE PUBLIC AND THE PRESERVATION OF BIG BEND NATIONAL PARK AND THE RIO GRANDE WILD & SCENIC RIVER. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 1253635 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 1730753 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncomeFromGamingGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 995765 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 995765 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 1253635 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1730753 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 9180 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 5627 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 14807 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 8667 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 8667 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 3230 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 7957 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 15908 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 23865 |
| IRS990/OtherExpensesGrp/Desc | 0 | CREDIT CARD FEES |
| IRS990/OtherExpensesGrp/Desc | 1 | MEETINGS AND EVENTS |
| IRS990/OtherExpensesGrp/Desc | 2 | Postage and Shipping |
| IRS990/OtherExpensesGrp/Desc | 3 | OTHER |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 9965 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 35538 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 7220 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 4896 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 35538 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 9965 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 7220 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 4896 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | OTHER INCOME |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 9188 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 9188 |
| IRS990/OtherRevenueTotalAmt | 0 | 9188 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 21413 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 147845 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 169258 |
| IRS990/OtherWebsiteInd | 0 | X |
| IRS990/OthNotesLoansReceivableNetGrp/EOYAmt | 0 | 0 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PaymentsToAffiliatesGrp/TotalAmt | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 6240 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 12330 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 18570 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 5134 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 9965 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 15099 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 3165 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | JULIE CHILDS |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | PROVIDED INTERPRETATION SUPPORT TO THE NATIONAL PARK SERVICE, INCLUDING PREPARATION OF PROGRAMS AND PROVIDING INTERPRETIVE SERVICES, THROUGH THE USE OF PAID PERSONNEL AND EQUIPMENT. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 89607 |
| IRS990/ProgSrvcAccomActy2Grp/GrantAmt | 0 | 28769 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | MAINTENANCE OF PARK MEMBERSHIP PROGRAM, WHICH PROVIDED SUBSCRIBERS WITH PARK ACTIVITIES UPDATES, SEMINARS, AND OTHER FEATURES. MEMBER NEWSLETTERS PROVIDE PARK RANGERS AND OTHER PARK PERSONNEL A MEDIA TO PUBLISH INFORMATION ABOUT PARK SAFETY AND CONSERVATIONAL USE OF PARK FACILITIES AND NATURAL AREAS. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 749 |
| IRS990/ProgSrvcAccomActy3Grp/RevenueAmt | 0 | 625 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 3027 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 37222 |
| IRS990/PYInvestmentIncomeAmt | 0 | 6277 |
| IRS990/PymtTravelEntrtnmntPubOfclGrp/TotalAmt | 0 | 0 |
| IRS990/PYOtherExpensesAmt | 0 | 203987 |
| IRS990/PYOtherRevenueAmt | 0 | 694054 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 161298 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 300851 |
| IRS990/PYTotalExpensesAmt | 0 | 542060 |
| IRS990/PYTotalRevenueAmt | 0 | 703358 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvblFromDisqualifiedPrsnGrp/EOYAmt | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReceivablesFromOfficersEtcGrp/EOYAmt | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 477118 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 929930 |
| IRS990/RoyaltiesGrp/TotalAmt | 0 | 0 |
| IRS990/RoyaltiesRevenueGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 374561 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 914026 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 2425 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 3027 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 12067 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 85366 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 9696 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 112581 |
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| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus1YearAmt | 0 | 26423 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 26423 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 26423 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 26423 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl509Grp/TotalAmt | 0 | 132115 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 24190 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 6277 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1239 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1005 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 557 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 33268 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 1607286 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 1308682 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 1211517 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 1063502 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 730442 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 5921429 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 24190 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 6277 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 1239 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 1005 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 557 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 33268 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.00540 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00280 |
| IRS990ScheduleA/NetIncomeFromOtherUBIGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearAmt | 0 | 9188 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 1599 |
| IRS990ScheduleA/OtherIncome509Grp/TotalAmt | 0 | 10787 |
| IRS990ScheduleA/Post1975UBTIGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.99290 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.99690 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 6166125 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 1636134 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 1338132 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1250007 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1175291 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 766561 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 6166125 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 1669512 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 1346008 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 1251246 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 1176296 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 767118 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 6210180 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/DonatedServicesAndUseFcltsAmt | 0 | 26423 |
| IRS990ScheduleD/DonatedServicesUseFcltsAmt | 0 | 26423 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 8269 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 72625 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 80894 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 26423 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 555075 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 107786 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 126270 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 234056 |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 26423 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 1032193 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 116055 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 555075 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 1032193 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 1058616 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 581498 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | COPIES OF FORM 990 ARE PROVIDED TO MEMBERS OF THE BOARD. AFTER REVIEW AND APPROVAL, THE FORM 990 IS FILED. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | THE BOARD OF DIRECTORS MONITORS CONFLICTS OF INTEREST AT ITS SEMI-ANNUAL BOARD MEETINGS. IN ADDITION, THE BOARD MEMBERS ARE REQUIRED TO FILL OUT CONFLICT OF INTEREST FORMS ANNUALLY, AND DISCLOSE ANY POTENTIAL CONFLICTS OF INTEREST. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | THE INDEPENDENT BOARD OF DIRECTORS DETERMINES EXECUTIVE COMPENSATION THROUGH ANNUAL REVIEW AND CONSIDERATION OF COMPARATIVE COMPENSATION FOR SIMILAR POSITIONS IN SIMILAR ORGANIZATIONS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | No documents available to the public. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990, Part VI, Section B, Line 11b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Form 990, Part VI, Section B, Line 12c |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Form 990, Part VI, Section B, Line 15a |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | Form 990, Part VI, Section C, Line 19 |
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