Nonprofit screen
Screen a listMammoth Site of Hot Springs
Can you give?
Listed with the IRS. Every screen came back clear.
A 501(c)(3) on Publication 78 and the IRS master file.
- IRS nonprofit listing
- No issue
- Revocation
- None
- IRS files
- Agree
- Sanctions
- No match
- IRS bulletin
- No notice
- California
- No record
- Charity type
- 509(a)(1)
$1.6Mrevenue
FY2025 · −11% in 3 yrs54staff
7 of 8years filed
’18’19’20’21’22’23’24’25
Revenue and spendingRevenueSpendingDeficit
Against similar nonprofits FY2025
Operating margin−4.1%
Months of reserve9.3mo
Revenue growth (annualized)+1.4%
Middle half of peersMedianMammoth Site of Hot Springs
Where the money goes FY2025 · $1.7M spent
Programs$1.3M79%Management and general$261k15%Fundraising$99k6%990 FY2025 · Part IX line 25
Worth checking1
No return on record for FY2024
It filed for FY2023 and FY2025, with nothing on record in between.
IRS 990 e-file recordsIn its favor1
Strong governance
12 of 12 board members independent. Conflict-of-interest and whistleblower policies, audited financial statements, board reviews the 990.
990 Part VI11funders
$131ka year, last 3 years
71%from its largest funder
Funder’17’18’19’20’21’22’23David B Jones FoundationStopped after FY2022$80k$150k$130k–Bnsf Railway FoundationStopped after FY2022$10k$10k–Mary Chilton DAR FoundationNew in FY2023$8kAdams Mastrovich Fam FdnOn and off$5kJean R D Hecht & Betty Rae Hecht Charitable FoundationSince FY2018$400$400$400$400$400$400First Interstate BancSystem Foundation IncStopped after FY2021$125$100–Donor-advised giftsDonors not disclosed$23k$61k$264k$57k$5k$20k$55k
FundedThrough a donor-advised fundStopped