| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 4158 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 164787 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 3750 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TULEYOME ENGAGES IN ADVOCACY AND ACTIVE STEWARDSHIP WITH DIVERSE COMMUNITIES TO CONSERVE, ENHANCE, RESTORE, AND ENJOY THE LANDS IN THE REGION. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 1435 |
| IRS990/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 118 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 70 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 1623 |
| IRS990/AllOtherContributionsAmt | 0 | 822472 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | ERIKA TRUJILLO |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 5303502599 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 607 NORTH STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | WOODLAND |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 95695 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 67574 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 67574 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 3693 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 4593 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 8301 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 16587 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 107476 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | PO BOX 1001 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | MIDDLETOWN |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 95461 |
| IRS990/ContractorCompensationGrp/ContractorName/PersonNm | 0 | JUSTIN SMITH |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | CONSTRUCTION |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 1492329 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 414 |
| IRS990/CYOtherExpensesAmt | 0 | 1031084 |
| IRS990/CYOtherRevenueAmt | 0 | 12375 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 289832 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 184202 |
| IRS990/CYTotalExpensesAmt | 0 | 1215286 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 40687 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 1505118 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/Desc | 0 | THE CORONA AND TWIN PEAKS MINES PROGRAM IS TO DEVELOP AND DEMONSTATE A COST-EFFECTIVE LEGAL APPROACH FOR MINE REMDIATION INVOLVING PRIVATE LANDOWNERS, NON-PROFIT ORGANIZATIONS, REGULATORS, AND OTHER STAKEHOLDERS. THIS PROJECT WILL DESIGN, IMPLEMENT, AND DOCUMENT THE EFFECTIVENESS OF SEMI-PASSIVE TREATMENT TECHNOLOGY TO REMEDIATE THE IMPACTS OF DISCHARGES FROM REMOTE, INACTIVE MERCURY MINE SITES. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 0 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 9 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 648238 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 20236 |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 15409 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 35645 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 3152 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 105 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 3257 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 4465 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 7534 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 786506 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 798505 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 30.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 8.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 40.00 |
| 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/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/PersonNm | 0 | BOB SCHNEIDER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | JOHN AND JUDY AHMANN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | JIM EATON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | ANDREW FULKS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | VICTORIA BRANDON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | GLEN HOLSTEIN PHD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | CAROL KUNZE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | JEFF FALYN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | CHAD ROBERTS PHD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | STEVE GRECO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | STEVE DROWN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | SARA HUSBY-GOOD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | BRET HEWITT |
| 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 | 7055 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 35519 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 25000 |
| 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/TitleTxt | 0 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | BOARD DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | BOARD DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | NAPA DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | BOARD DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | BOARD DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | BOARD DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | BOARD DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | EXECUTIVE DIR. |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | EXECUTIVE DIR. |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2002 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedInd | 0 | 0 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 11 |
| IRS990/GovernmentGrantsAmt | 0 | 669857 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 1505118 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 10 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 5999 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 3491 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 6068 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 15558 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 44927 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 8626 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 53553 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 414 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 414 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 11 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 1165624 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 1595624 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 1595624 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| 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 | TULEYOME ENGAGES IN ADVOCACY AND ACTIVE STEWARDSHIP WITH DIVERSE COMMUNITIES TO CONSERVE, ENHANCE, RESTORE, AND ENJOY THE LANDS IN THE REGION. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 1289786 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 1579728 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 110 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 700 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 11834 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 8168 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 20702 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 20010 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 34171 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 21937 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 76118 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 13842 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 163047 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | OTHER INCOME |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 12375 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 12375 |
| IRS990/OtherRevenueTotalAmt | 0 | 12375 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 2308 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 66081 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 32150 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 100539 |
| IRS990/OtherWebsiteInd | 0 | X |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 192 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 4440 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 11457 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 16089 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 3030 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 2185 |
| IRS990/PrincipalOfficerNm | 0 | ANDREW FULKS |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | THE LAKE BERRYESSA NORTH END TRAILS WILL REALIGN THE TRAIL TO CREATE A MORE SUSTAINABLE AND SAFER TRAIL AND TO ENSURE THAT THE NORTH END TRAIL IS A VIABLE SEGMENT OF THE LAKE BERRYESSA TRAIL. FREE SPAN BRIDGES AND BOARDWALKS WILL BE INSTALLED AT FORMER BRIDGE SITES, NEW TRAILHEAD GATES WILL REPLACE DETERIORATED ENTRANCE STRUCTURES, AND WET CROSSING CONSTRUCTED TO PROTECT THE NUMEROUS MINOR DRAINAGES IN THIS AREA. THE PROJECT INCLUDES DEVELOPING SOME NEW LOOP TRAILS TO PROVIDE ALTERNATIVE ROUTES AND BETTER ACCESS TO THE NORTH SHORE AREA. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 106263 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 113709 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | BSM PROGRAM - THE BERRYESSA SNOW MOUNTAIN PROGRAM HELPED TO PROTECT THE BERRYESSA SNOW MOUNTAIN REGION. THE PROGRAM PREPARES MATERIALS AND PARTICIPATES IN PUBLIC EDUCATION OUTREACH TO RAISE AWARENESS ABOUT THE CONSERVATION PROJECT.MEETS WITH LOCAL, STATE AND FEDERAL GOVERNMENT AGENCIES. MEETS WITH CIVIC ORGANIZATIONS, RECREATIONAL GROUPS, BUSINESS ORGANIZATIONS, AND NATIVE AMERICAN TRIBES TO DISCUSS CONSERVATION AREA. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 93959 |
| IRS990/ProgSrvcAccomActy3Grp/RevenueAmt | 0 | 99000 |
| IRS990/ProgSrvcAccomActyOtherGrp/Desc | 0 | OTHER PROGRAM SERVICES INCLUDE YOUTH EVENT PROGRAMS, LAND STEWARDSHIP PROGRAMS, AND CONSERVATION OF COLD CANYON HEADWATERS, GOAT MOUNTAIN, IRELAND RANCH AND SILVER SPURS RANCH. |
| IRS990/ProgSrvcAccomActyOtherGrp/ExpenseAmt | 0 | 123702 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 407213 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 239 |
| IRS990/PYOtherExpensesAmt | 0 | 192000 |
| IRS990/PYOtherRevenueAmt | 0 | 7045 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 3148 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -892 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 226537 |
| IRS990/PYTotalExpensesAmt | 0 | 418537 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 417645 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 289832 |
| 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 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 556148 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 144132 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 311003 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 1492329 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 407213 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 495875 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 647375 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 986647 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 4029439 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 414 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 239 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 22 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 68 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 16 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 759 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 0 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 3148 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 3148 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 3057 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 2968 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 12321 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 414 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 239 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 22 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 68 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 16 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 759 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.00020 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00010 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearAmt | 0 | 12375 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 7045 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 33927 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1837 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 1138 |
| IRS990ScheduleA/OtherIncome509Grp/TotalAmt | 0 | 56322 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.96840 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.98550 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 3969275 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearAmt | 0 | 29087 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus1YearAmt | 0 | 39330 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus2YearsAmt | 0 | 1642 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus3YearsAmt | 0 | 2426 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 72485 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearAmt | 0 | 29087 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus1YearAmt | 0 | 39330 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus2YearsAmt | 0 | 1642 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus3YearsAmt | 0 | 2426 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 72485 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 1492329 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 410361 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 499023 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 650432 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 989615 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 4041760 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 1505118 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 417645 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 532972 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 652337 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 990769 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 4098841 |
| 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 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 1595624 |
| IRS990ScheduleD/LandGrp/InvestmentCostOrOtherBasisAmt | 0 | 1595624 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 6019 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 1 | 6242 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 2 | 150786 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | ACCRUED VACATION |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 1 | ACCRUED EXPENSES |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 2 | ADVANCE - RTP |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 1595624 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 163047 |
| IRS990/ScheduleJRequiredInd | 0 | 0 |
| IRS990/ScheduleORequiredInd | 0 | 1 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | LINE 11B EXPLANATION - THE ACCOUNTANT PREPARES AND DISCUSSES THE FORM 990 WITH THE EXECUTIVE DIRECTOR. ONCE COMPLETED AND REVIEWED,THE FORM 990 IS FORWARDED TO THE BOARD OF DIRECTORS FOR THEIR REVIEW. THE FORM 990 IS APPROVED AND FORWARDED TO THE TAX ACCOUNTANT TO FINALIZE AND MAIL. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | EVERYONE SIGNS THE CONFLICT OF INTEREST STATEMENTS ANNUALLY. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | AN ANNUAL REVIEW, COMPARISON WITH SIMILAR ORGANIZATIONS AND A BOARD REVIEW IS CONDUCTED. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | ALL DOCUMENTS ARE AVAILABLE UPON REQUEST. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | CONSULTING: PROGRAM SERVICE EXPENSES 786,506. MANAGEMENT AND GENERAL EXPENSES 7,534. FUNDRAISING EXPENSES 4,465. TOTAL EXPENSES 798,505. |
| 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 15 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PART VI, SECTION C, LINE 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | FORM 990, PART IX, LINE 11G |
| IRS990/SchoolOperatingInd | 0 | 0 |
| IRS990/SignificantChangeInd | 0 | 0 |