Liabilities / Assets
28th percentile
Higher debt load relative to assets than 28% of similar nonprofits.
EIN 94-6103014 • 501(c)3 • Nevada City, CA
Profile
To preserve landmarks and objects of local historic interest-educational
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
31st percentile
Higher debt load relative to revenue than 31% 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
80th percentile
Faster asset growth than 80% of similar nonprofits.
Revenue Growth
91st percentile
Faster revenue growth than 91% of similar nonprofits.
Assets
Up$1,298,084
Up $240,656 (+23%) from 2023
Liabilities
Up$6,157
Up $4,826 (+363%) from 2023
Net Assets
Up$1,291,927
Up $235,830 (+22%) from 2023
Revenue
Up$419,006
Up $193,826 (+86%) from 2023
Expenses
Down$183,176
Down $66,059 (-27%) from 2023
Net Income
Up$235,830
Up $259,885 (+1080%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
To preserve landmarks and objects of local historic interest-educational
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Cash and Non-Interest-Bearing Accounts | $360,831 | $956,539 | ▲ $595,708 |
| Land, Buildings, and Equipment, Net | $329,521 | $322,829 | ▼ $6,692 |
| Savings and Temporary Cash Investments | $251,635 | - | - |
| Inventories for Sale or Use | $115,441 | $18,716 | ▼ $96,725 |
| Total Assets | $1,057,428 | $1,298,084 | ▲ $240,656 |
| Liabilities | |||
| Other Liabilities | $1,331 | $6,157 | ▲ $4,826 |
| Total Liabilities | $1,331 | $6,157 | ▲ $4,826 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $1,056,097 | $1,291,927 | ▲ $235,830 |
| Total Net Assets Fund Balance | $1,056,097 | $1,291,927 | ▲ $235,830 |
| Total Liabilities and Net Assets / Fund Balance | $1,057,428 | $1,298,084 | ▲ $240,656 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Other Land Buildings | $122,959 | $98,099 | $221,058 |
| Land | $148,654 | - | $148,654 |
| Buildings | $51,216 | $31,550 | $82,766 |
| Equipment | - | $22,443 | $22,443 |
| Name | Title |
|---|---|
| Daniel Ketcham | President |
| Brita Rozynski | Director |
| Cathy Wilcox-barnes | Director |
| Desmond Gallagher | Director |
| Gary Kisor | Director |
| Jeffrey Boylan | Director |
| John Christensen | Director |
| Linda Jack | Director |
| Patricia Chestnut | Director |
| Stephen Fry | Director |
| Dakota Stroh | Secretary |
| Amanda Rogers | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $183,176 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| All Other Expenses | $43,451 | $13,282 | - | $56,733 |
| Other Expenses | $15,631 | - | - | $15,631 |
| Insurance | $13,173 | - | - | $13,173 |
| Occupancy | - | $7,469 | - | $7,469 |
| Depreciation Depletion | $6,692 | - | - | $6,692 |
| Advertising | $6,472 | - | - | $6,472 |
| Fees for Services Accounting | - | $2,250 | - | $2,250 |
| Fees for Services Legal | $125 | - | - | $125 |
| Total Functional Expenses | $160,175 | $23,001 | $0 | $183,176 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Sales Tax | $6,157 |
“No review was or will be conducted.”
“No documents available to the public”
“Volunteers present lectures, slide shows and films at public meetings held 11 times a year with an average attendance of approximately 50-75 persons”
“Public library for all members of the community”
“Rrm rail operations 13,636 0 0 rrm engine 5 0 8,128 0 bank fees 6,686 0 0 rrm building expense 6,437 0 0 fhm telephone 0 5,154 0 mmu picnic lunch 4,090 0 0 hcb security 4,070 0 0 special events 2,918 0 0 merchant fee 1,479 0 0 projects-sluice box 1,240 0 0 misc 1,170 0 0 fees 505 0 0 digitizing 431 0 0 dues & subscriptions 429 0 0 display 300 0 0 reimbursements 60 0 0 total 43,451 13,282 0”
“Increase in investment account 0 gold collection 0 decrease in investment account 0”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
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| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | TO PRESERVE LANDMARKS AND OBJECTS OF LOCAL HISTORIC INTEREST-EDUCATIONAL |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 6472 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 6472 |
| IRS990/AllOtherContributionsAmt | 0 | 286440 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 13282 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 43451 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 56733 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | DEBORAH WILLS |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 5302721077 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | P O BOX 1319 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | NEVADA CITY |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 95959 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 360831 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 956539 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | true |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConflictOfInterestPolicyInd | 0 | false |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CostOfGoodsSoldAmt | 0 | 15317 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 301976 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 64343 |
| IRS990/CYOtherExpensesAmt | 0 | 183176 |
| IRS990/CYOtherRevenueAmt | 0 | 34299 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 18388 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 235830 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 183176 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 419006 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 6692 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 6692 |
| IRS990/Desc | 0 | PUBLIC LIBRARY |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DoingBusinessAsName/BusinessNameLine1Txt | 0 | NEVADA COUNTY HISTORICAL SOCIETY |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 160175 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 2250 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 2250 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 125 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 125 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 10.00 |
| 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/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | 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/PersonNm | 0 | JEFFREY BOYLAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | PATRICIA CHESTNUT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | JOHN CHRISTENSEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | STEPHEN FRY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | DESMOND GALLAGHER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | LINDA JACK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | GARY KISOR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | BRITA ROZYNSKI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | CATHY WILCOX-BARNES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | DANIEL KETCHAM |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | AMANDA ROGERS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | DAKOTA STROH |
| 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/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/TitleTxt | 0 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | SECRETARY |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | false |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 12 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 434323 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 49616 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 4 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 13173 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 13173 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 115441 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 18716 |
| IRS990/InvestmentIncomeGrp/RelatedOrExemptFuncIncomeAmt | 0 | 64343 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 64343 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 152092 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 329521 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 322829 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 474921 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 15536 |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | TO PRESERVE LANDMARKS AND OBJECTS OF LOCAL HISTORIC INTEREST-EDUCATIONAL |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 1056097 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 1291927 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 34299 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 34299 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 1056097 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1291927 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 7469 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 7469 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherExpensesGrp/Desc | 0 | HCB REPAIRS & MAINT |
| IRS990/OtherExpensesGrp/Desc | 1 | PROJECTS-RAILROAD |
| IRS990/OtherExpensesGrp/Desc | 2 | RRM SHOP EXPENSE |
| IRS990/OtherExpensesGrp/Desc | 3 | OFFICE SUPPLIES |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 36837 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 19552 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 18242 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 15631 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 36837 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 19552 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 18242 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 15631 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 1331 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 6157 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfficerNm | 0 | DANIEL KETCHAM |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | BUILDING RENTAL |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 18388 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 18388 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | PRESENTS LECTURES, SLIDE SHOWS AND FILMS AT PUBLIC MEETINGS HEALD 11 TIMES A YEAR WITH AN AVERAGE ATTENDANCE OF APPROXIMATELY 50-75 PERSONS |
| IRS990/ProgSrvcAccomActyOtherGrp/Desc | 0 | PUBLIC LIBRARY FOR ALL MEMBERS OF THE COMMUNITY |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 155275 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 41059 |
| IRS990/PYOtherExpensesAmt | 0 | 249235 |
| IRS990/PYOtherRevenueAmt | 0 | 28846 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -24055 |
| IRS990/PYTotalExpensesAmt | 0 | 249235 |
| IRS990/PYTotalRevenueAmt | 0 | 225180 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 235830 |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | true |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 251635 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 301976 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 155275 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 249184 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 270974 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 79787 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 1057196 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 132347 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 87164 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 48042 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 47599 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 36616 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 351768 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.00000 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00000 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 1408964 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 434323 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 242439 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 297226 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 318573 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 116403 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 1408964 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 434323 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 242439 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 297226 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 318573 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 116403 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 1408964 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 51216 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 31550 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 82766 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 22443 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 22443 |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 148654 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 148654 |
| IRS990ScheduleD/OtherLandBuildingsGrp/BookValueAmt | 0 | 122959 |
| IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt | 0 | 98099 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 221058 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 6157 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | SALES TAX |
| IRS990ScheduleD/SolicitedAssetsSaleInd | 0 | false |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 322829 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 6157 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | false |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | VOLUNTEERS PRESENT LECTURES, SLIDE SHOWS AND FILMS AT PUBLIC MEETINGS HELD 11 TIMES A YEAR WITH AN AVERAGE ATTENDANCE OF APPROXIMATELY 50-75 PERSONS |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | PUBLIC LIBRARY FOR ALL MEMBERS OF THE COMMUNITY |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | NO REVIEW WAS OR WILL BE CONDUCTED. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | NO DOCUMENTS AVAILABLE TO THE PUBLIC |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | RRM RAIL OPERATIONS 13,636 0 0 RRM ENGINE 5 0 8,128 0 BANK FEES 6,686 0 0 RRM BUILDING EXPENSE 6,437 0 0 FHM TELEPHONE 0 5,154 0 MMU PICNIC LUNCH 4,090 0 0 HCB SECURITY 4,070 0 0 SPECIAL EVENTS 2,918 0 0 MERCHANT FEE 1,479 0 0 PROJECTS-SLUICE BOX 1,240 0 0 MISC 1,170 0 0 FEES 505 0 0 DIGITIZING 431 0 0 DUES & SUBSCRIPTIONS 429 0 0 DISPLAY 300 0 0 REIMBURSEMENTS 60 0 0 TOTAL 43,451 13,282 0 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 5 | INCREASE IN INVESTMENT ACCOUNT 0 GOLD COLLECTION 0 DECREASE IN INVESTMENT ACCOUNT 0 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990, PAGE 1, PART I, LINE 6 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PAGE 2, PART III, LINE 4D |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PAGE 6, PART VI, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PAGE 6, PART VI, LINE 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | FORM 990, PART IX, LINE 24E |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 5 | FORM 990, PART XI, LINE 9 |
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| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | CA |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | false |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 1057428 |
| IRS990/TotalAssetsEOYAmt | 0 | 1298084 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 1057428 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 1298084 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 301976 |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 23001 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 160175 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 183176 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 1331 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 6157 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 1331 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 6157 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 1056097 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 1291927 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 160175 |
| IRS990/TotalProgramServiceRevenueAmt | 0 | 18388 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 117030 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 419006 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 1057428 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 1298084 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/USAddress/AddressLine1Txt | 0 | 11693 BRUNSWICK PINES ROAD |
| IRS990/USAddress/CityNm | 0 | GRASS VALLEY |
| IRS990/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/USAddress/ZIPCd | 0 | 95945 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 12 |
| IRS990/VotingMembersIndependentCnt | 0 | 4 |
| IRS990/WebsiteAddressTxt | 0 | WWW.NCCN.NET/~HISTSOC/WELCOME.HTM |
| IRS990/WhistleblowerPolicyInd | 0 | false |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | true |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | DANIEL KETCHAM |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | PRESIDENT |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 5303205116 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-10-13 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | NEVADA COUNTY HISTORICAL SOCIETY |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | NEVA |
| ReturnHeader/Filer/EIN | 0 | 946103014 |
| ReturnHeader/Filer/PhoneNum | 0 | 5304778056 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 161 NEVADA CITY HWY |
| ReturnHeader/Filer/USAddress/CityNm | 0 | NEVADA CITY |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | CA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 95959 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | false |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 680443613 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | CAC PROFESSIONAL SERVICES |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 11641 BLOCKER DR STE 215 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | AUBURN |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | CA |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 95603 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 5308851426 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2025-10-13 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | CATHERINE A CLOW EA |
| ReturnHeader/ReturnTs | 0 | 2025-10-13T17:58:38-04:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2024-12-31 |
| ReturnHeader/TaxYr | 0 | 2024 |
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