Civic Intelligence

Lamb Spring Archaeological Preserve

EIN 20-5887108 • 501(c)3 • Littleton, CO

Profile

The corporation is organized exclusively for charitable, educational and scientific purposes including for such purposes the developing fund raising, building and operations of an on-site museum at the Lamb Spring Archaeological Preserve site. The Lamb Spring Board administers several tours per year for numerous attendees who reside in the Denver Metro area. Various scientific publications about Lamb Spring were published between 1960 and 2004 by Denver Museum of Nature and Science began a review of all artifact previously excavated from the site to determine radiocarbon dates of Megafauna remains. The Board is working with other scientists to promote additional studies.

8155 Piney River Ave Suite 200Littleton, CO 80125

www.lambspring.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

60th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • <$500k nonprofits • Source year 2024

Liabilities / Revenue

62nd percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • <$500k nonprofits • Source year 2024

Net Margin

97th percentile

95%

Higher net margin than 97% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2024

Top Officer Pay

81st percentile

$0

Higher top officer pay than 81% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

501(c)3 • <$500k nonprofits • Source year 2024

Asset Growth

79th percentile

26%

Faster asset growth than 79% of similar nonprofits.

501(c)3 • <$500k nonprofits • Annualized from 2023 to 2024

Revenue Growth

93rd percentile

121%

Faster revenue growth than 93% of similar nonprofits.

501(c)3 • <$500k nonprofits • Annualized from 2023 to 2024

Balance Sheet
Liabilities / Assets60th percentile

Assets

Up

$26,674

Up $5,534 (+26%) from 2023

Liabilities

Flat

$0

Flat from 2023

Net Assets

$26,674

No earlier filing loaded for comparison.

Operations
Liabilities / Revenue62nd percentileNet Margin97th percentile

Revenue

Up

$7,079

Up $3,869 (+121%) from 2023

Expenses

Up

$388

Up $178 (+85%) from 2023

Net Income

Up

$6,691

Up $3,691 (+123%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth79th percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$60K$40K$20K$0Assets 2016: $43,747Liabilities 2016: $02016Assets 2017: $41,830Liabilities 2017: $02017Assets 2018: $38,907Liabilities 2018: $02018Assets 2019: $40,390Liabilities 2019: $02019Assets 2020: $37,185Liabilities 2020: $02020Assets 2021: $40,048Liabilities 2021: $0Net Assets 2021: $40,0482021Assets 2022: $19,297Liabilities 2022: $0Net Assets 2022: $19,2972022Assets 2023: $21,140Liabilities 2023: $02023Assets 2024: $26,674Liabilities 2024: $0Net Assets 2024: $26,6742024

Highlighted filing

2024

Assets$26,674
Liabilities$0
Net Assets$26,674
Open 2024 Filing

Operations Trend

Revenue Growth93rd percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$10K$5.0K$0-$5.0KRevenue 2016: $4,784Expenses 2016: $5,108Net Income 2016: -$3242016Revenue 2017: $3,444Expenses 2017: $5,361Net Income 2017: -$1,9172017Revenue 2018: $4,730Expenses 2018: $7,653Net Income 2018: -$2,9232018Revenue 2019: $5,707Expenses 2019: $4,224Net Income 2019: $1,4832019Revenue 2020: $1,887Expenses 2020: $5,091Net Income 2020: -$3,2042020Revenue 2021: $2,881Expenses 2021: $18Net Income 2021: $2,8632021Revenue 2022: $3,638Expenses 2022: $0Net Income 2022: $3,6382022Revenue 2023: $3,210Expenses 2023: $210Net Income 2023: $3,0002023Revenue 2024: $7,079Expenses 2024: $388Net Income 2024: $6,6912024

Highlighted filing

2024

Revenue$7,079
Expenses$388
Net Income$6,691
Open 2024 Filing

Filings

Most recent year

2024 • Form 990EZDetailed filing. Detailed filing data is available for this year.

Open filing
Assets
$26,674
Liabilities
$0
Net assets
$26,674
Revenue
$7,079
Expenses
$388
Net income
$6,691
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2024Detailed filing. Detailed filing data is available for this year.$26.7$0.00$26.7$7.08$0.39$6.69
2023Summary only. Only limited summary data is available for this year.$21.1$0.00$3.21$0.21$3.00
2022Detailed filing. Detailed filing data is available for this year.$19.3$0.00$19.3$3.64$0.00$3.64
2021XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$40.0$0.00$40.0$2.88$0.02$2.86
2020Summary only. Only limited summary data is available for this year.$37.2$0.00$1.89$5.09$3.20
2019Summary only. Only limited summary data is available for this year.$40.4$0.00$5.71$4.22$1.48
2018Summary only. Only limited summary data is available for this year.$38.9$0.00$4.73$7.65$2.92
2017Summary only. Only limited summary data is available for this year.$41.8$0.00$3.44$5.36$1.92
2016Summary only. Only limited summary data is available for this year.$43.7$0.00$4.78$5.11$0.32
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
Sep 26, 2025
Return Version
2024v5.0
Gross Receipts
$7,079
Mission and Program Overview

Mission

The corporation is organized exclusively for charitable, educational and scientific purposes including for such purposes the developing fund raising, building and operations of an on-site museum at the Lamb Spring Archaeological Preserve site. The Lamb Spring Board administers several tours per year for numerous attendees who reside in the Denver Metro area. Various scientific publications about Lamb Spring were published between 1960 and 2004 by Denver Museum of Nature and Science began a review of all artifact previously excavated from the site to determine radiocarbon dates of Megafauna remains. The Board is working with other scientists to promote additional studies.

Program Services

DescriptionGrantsExpenses
The organization was able to provide a few site tours which generated some donations. We also received donations from Colorado Gives Day.$0$0
Compensation and Service Providers
Top Officer Pay81st percentile

Employees

NameTitleFull / Part TimeBaseOtherTotal
Nathan BoylessDirector-$0--
Susan CollinsVice President-$0--
Dr Barbara PageSecretary-$0--
Dr Maxine McBrinnPresident-$0--
Harold SmethillsTreasurer-$0--
Dr James DixonHonorary Advisor-$0--
Steve ShermanChairman-$0--
Megan OferDirector-$0--
Cameron RandolfDirector-$0--
Sandra GilmourAccountant-$0--
Dr Craig LeeDirector-$0--
Carlton GoverVolunteer-$0--
Brittany CasselVolunteer-$0--
Dr Russ GrahamHonorary Advisor-$0--
Jack WarnerDocent-$0--
Stephanie BoktorDocent-$0--
Betsy HealyDocent-$0--
Filing and Contact Details

Filer

Filer Name
Lamb Spring Archaeological Preserve
EIN
20-5887108
Phone
3032026800
Address
8155 Piney River Ave Suite 200, Littleton, CO 80125

Signing Officer

Name
Harold Smethills
Title
Treasurer
Phone
3037366714
Signed
2025-09-26
Supplemental Narrative

Additional Explanations

Form 990-EZ, Part I, Line 20

“depreciation expense”

Form 990-EZ, Part II, Line 24

“Net fixed assets”

Raw XML Appendix247 raw XML fields

This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

Path#Value
IRS990EZ/ActivitiesNotPreviouslyRptInd00
IRS990EZ/BenefitsPaidToOrForMembersAmt00
IRS990EZ/BooksInCareOfDetail/PersonNm0Harold Smethills
IRS990EZ/BooksInCareOfDetail/PhoneNum03032026800
IRS990EZ/BooksInCareOfDetail/USAddress/AddressLine1Txt08155 Piney River Ave Suite 200
IRS990EZ/BooksInCareOfDetail/USAddress/CityNm0Littleton
IRS990EZ/BooksInCareOfDetail/USAddress/StateAbbreviationCd0CO
IRS990EZ/BooksInCareOfDetail/USAddress/ZIPCd080125
IRS990EZ/CashSavingsAndInvestmentsGrp/BOYAmt016062
IRS990EZ/CashSavingsAndInvestmentsGrp/EOYAmt022754
IRS990EZ/ChgMadeToOrgnzngDocNotRptInd00
IRS990EZ/ContributionsGiftsGrantsEtcAmt07079
IRS990EZ/CostOfGoodsSoldAmt00
IRS990EZ/CostOrOtherBasisExpenseSaleAmt00
IRS990EZ/DirectIndirectPltclExpendAmt00
IRS990EZ/DonorAdvisedFndsInd00
IRS990EZ/EngagedInExcessBenefitTransInd00
IRS990EZ/ExcessOrDeficitForYearAmt06691
IRS990EZ/FeesAndOtherPymtToIndCntrctAmt0388
IRS990EZ/FiledScheduleAInd01
IRS990EZ/ForeignFinancialAccountInd00
IRS990EZ/ForeignOfficeInd00
IRS990EZ/Form1120PolFiledInd00
IRS990EZ/Form990TotalAssetsGrp/BOYAmt021140
IRS990EZ/Form990TotalAssetsGrp/EOYAmt026674
IRS990EZ/FundraisingGrossIncomeAmt00
IRS990EZ/GainOrLossFromSaleOfAssetsAmt00
IRS990EZ/GamingGrossIncomeAmt00
IRS990EZ/GrantsAndSimilarAmountsPaidAmt00
IRS990EZ/GrossProfitLossSlsOfInvntryAmt00
IRS990EZ/GrossReceiptsAmt07079
IRS990EZ/GrossSalesOfInventoryAmt00
IRS990EZ/InfoInScheduleOPartIIInd0X
IRS990EZ/InfoInScheduleOPartIInd0X
IRS990EZ/InvestmentIncomeAmt00
IRS990EZ/LandAndBuildingsGrp/BOYAmt00
IRS990EZ/LandAndBuildingsGrp/EOYAmt00
IRS990EZ/LobbyingActivitiesInd00
IRS990EZ/MadeLoansToFromOfficersInd00
IRS990EZ/MembershipDuesAmt00
IRS990EZ/MethodOfAccountingCashInd0X
IRS990EZ/NetAssetsOrFundBalancesBOYAmt021140
IRS990EZ/NetAssetsOrFundBalancesEOYAmt026674
IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt021140
IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt026674
IRS990EZ/OccupancyRentUtltsAndMaintAmt00
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt00.77
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt10.77
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt21.54
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt31.92
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt40.77
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt50.23
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt62.31
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt70.77
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt82.31
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt90.77
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt100.77
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt110.77
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt120.77
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt130.25
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt140.25
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt150.25
IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt160.25
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt00
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt10
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt20
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt30
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt40
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt50
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt60
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt70
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt80
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt90
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt100
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt110
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt120
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt130
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt140
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt150
IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt160
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt00
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt10
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt20
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt30
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt40
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt50
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt60
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt70
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt80
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt90
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt100
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt110
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt120
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt130
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt140
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt150
IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt160
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt00
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt10
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt20
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt30
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt40
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt50
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt60
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt70
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt80
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt90
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt100
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt110
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt120
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt130
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt140
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt150
IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt160
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm0Nathan Boyless
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm1Susan Collins
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm2Dr Barbara Page
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm3Dr Maxine McBrinn
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm4Harold Smethills
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm5Dr James Dixon
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm6Steve Sherman
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm7Megan Ofer
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm8Cameron Randolf
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm9Sandra Gilmour
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm10Dr Craig Lee
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm11Carlton Gover
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm12Brittany Cassel
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm13Dr Russ Graham
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm14Jack Warner
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm15Stephanie Boktor
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm16Betsy Healy
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt0Director
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt1Vice President
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt2Secretary
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt3President
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt4Treasurer
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt5Honorary Advisor
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt6Chairman
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt7Director
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt8Director
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt9Accountant
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt10Director
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt11Volunteer
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt12Volunteer
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt13Honorary Advisor
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt14Docent
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt15Docent
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt16Docent
IRS990EZ/OperateHospitalInd00
IRS990EZ/Organization501c3Ind0X
IRS990EZ/OrganizationDissolvedEtcInd00
IRS990EZ/OrganizationHadUBIInd00
IRS990EZ/OtherAssetsTotalDetail/BOYAmt05078
IRS990EZ/OtherAssetsTotalDetail/EOYAmt03920
IRS990EZ/OtherChangesInNetAssetsAmt0-1157
IRS990EZ/OtherExpensesTotalAmt00
IRS990EZ/OtherRevenueTotalAmt00
IRS990EZ/PartVIHghstPdCntrctProfSrvcTxt0NONE
IRS990EZ/PartVIOfCompOfHghstPdEmplTxt0NONE
IRS990EZ/PoliticalCampaignActyInd00
IRS990EZ/PrimaryExemptPurposeTxt0The corporation is organized exclusively for charitable, educational and scientific purposes including for such purposes the developing fund raising, building and operations of an on-site museum at the Lamb Spring Archaeological Preserve site. The Lamb Spring Board administers several tours per year for numerous attendees who reside in the Denver Metro area. Various scientific publications about Lamb Spring were published between 1960 and 2004 by Denver Museum of Nature and Science began a review of all artifact previously excavated from the site to determine radiocarbon dates of Megafauna remains. The Board is working with other scientists to promote additional studies.
IRS990EZ/PrintingPublicationsPostageAmt00
IRS990EZ/ProgramServiceRevenueAmt00
IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt0The organization was able to provide a few site tours which generated some donations. We also received donations from Colorado Gives Day.
IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt00
IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt00
IRS990EZ/ProhibitedTaxShelterTransInd00
IRS990EZ/RelatedOrganizationCtrlEntInd00
IRS990EZ/SalariesOtherCompEmplBnftAmt00
IRS990EZ/SaleOfAssetsGrossAmt00
IRS990EZ/SchoolOperatingInd00
IRS990EZ/SpecialEventsDirectExpensesAmt00
IRS990EZ/SpecialEventsNetIncomeLossAmt00
IRS990EZ/StatesWhereCopyOfReturnIsFldCd0CO
IRS990EZ/SubjectToProxyTaxInd00
IRS990EZ/SumOfTotalLiabilitiesGrp/BOYAmt00
IRS990EZ/SumOfTotalLiabilitiesGrp/EOYAmt00
IRS990EZ/TanningServicesProvidedInd00
IRS990EZ/TaxImposedOnOrganizationMgrAmt00
IRS990EZ/TaxImposedUnderIRC4911Amt00
IRS990EZ/TaxImposedUnderIRC4912Amt00
IRS990EZ/TaxImposedUnderIRC4955Amt00
IRS990EZ/TaxReimbursedByOrganizationAmt00
IRS990EZ/TotalExpensesAmt0388
IRS990EZ/TotalProgramServiceExpensesAmt00
IRS990EZ/TotalRevenueAmt07079
IRS990EZ/TransactionWithControlEntInd00
IRS990EZ/TrnsfrExmptNonChrtblRltdOrgInd00
IRS990EZ/TypeOfOrganizationCorpInd0X
IRS990EZ/WebsiteAddressTxt0www.lambspring.org
IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt07079
IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt03210
IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt03638
IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt02880
IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt01887
IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt018694
IRS990ScheduleA/InvestmentIncomeCYPct00
IRS990ScheduleA/InvestmentIncomePYPct00
IRS990ScheduleA/PubliclySupportedOrg509a2Ind0X
IRS990ScheduleA/PublicSupportCY509Pct01
IRS990ScheduleA/PublicSupportPY509Pct01
IRS990ScheduleA/PublicSupportTotal509Amt018694
IRS990ScheduleA/ThirtyThrPctSuprtTestsPY509Ind0X
IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt07079
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt03210
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt03638
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt02880
IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt01887
IRS990ScheduleA/Total509Grp/TotalAmt018694
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt07079
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt03210
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt03638
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt02880
IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt01887
IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt018694
IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine10RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorNum0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine10RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine20RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt0RESTRICTED
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0depreciation expense
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1Net fixed assets
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0Form 990-EZ, Part I, Line 20
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1Form 990-EZ, Part II, Line 24
ReasonableCauseExplanation/ExplanationTxt0Form 8868 was filed requesting an extension what was granted.
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/PersonNm0Harold Smethills
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0Treasurer
ReturnHeader/BusinessOfficerGrp/PhoneNum03037366714
ReturnHeader/BusinessOfficerGrp/SignatureDt02025-09-26
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0LAMB SPRING ARCHAEOLOGICAL PRESERVE
ReturnHeader/Filer/BusinessNameControlTxt0LAMB
ReturnHeader/Filer/EIN0205887108
ReturnHeader/Filer/PhoneNum03032026800
ReturnHeader/Filer/USAddress/AddressLine1Txt08155 Piney River Ave Suite 200
ReturnHeader/Filer/USAddress/CityNm0Littleton
ReturnHeader/Filer/USAddress/StateAbbreviationCd0CO
ReturnHeader/Filer/USAddress/ZIPCd080125
ReturnHeader/IRSResponsiblePrtyInfoCurrInd01
ReturnHeader/ReturnTs02025-09-18T13:39:34-07:00
ReturnHeader/ReturnTypeCd0990EZ
ReturnHeader/TaxPeriodBeginDt02024-01-01
ReturnHeader/TaxPeriodEndDt02024-12-31
ReturnHeader/TaxYr02024

Document Assets

No mirrored PDF or thumbnail assets are attached yet.