California · Nonprofit
MAMMOTH LAKES FOUNDATION
MAMMOTH LAKES FOUNDATION (California) receives grants from 18 organizations whose IRS filings report $1,099,241 to it, the largest being The William and Kathryn Scripps Family Foundation ($435,000). 14 of them have funded it in more than one year.
- Revenue FY2025
- $481k
- Funders on record
- 18
- Grants received
- $1.1M
- Net assets
- $7.8M
What Mammoth Lakes Foundation does
Mission
The foundation supports the development of higher education and cultural enrichment in the eastern sierra, including the establishment of a permanent campus in the mammoth lakes area that will provide facilities for academic studies, appreciation of the arts, and student housing.
As stated on its FY2025 Form 990.
Programs
The foundation awarded scholarships in the fall and spring semseters. Hundreds of students have received scholarships since the program was started.the foundation continues to work with community organizations and the college as to future land use and facilities. The next project the community would like to see developed is a cultural center, expanded theater, and new arts programs. Planning and visioning is why we have a college in mammoth lakes. It is essential to continue this process which often takes years before the next project can become a reality.
$92,276 spent$22,426 earned by the program100% of program spendingThe Mammoth Lakes Foundation awarded 69 scholarships for the 2020-21 academic year to local students attending Cerro Coso Community College, Mammoth Lakes campus. Over 678 students have received scholarships since the programs inception. Today, the Foundation provides full-tuition scholarships and a book stipend each semester to local students of all ages enrolled at Cerro Coso. Students enrolled in a licensed vocational nursing program requiring travel also receive gas cards to help offset that expense. The Mammoth Lakes Foundation also provides academic support, mentoring, peer support, and other opportunities to its students including partial housing scholarships for eligible students residing in the South Gateway Apartments adjacent to the campus. The Mammoth Lakes Foundation also administers academic scholarships awarded to local high school students by the Terry Plum family.
Currently, the ski museum has limited exhibits as most of the exhibit space has been converted to theater use. Two rooms display old mammoth lakes photos and one tells a story about how the area was developed.
The Forest Island Project is an art and advocacy program supporting contemporary artists and creative cultural innovators who are working at the highest levels in their fields through the organization of an artists and critical thinkers fellowship/residency.The Mammoth Lakes Foundation also operates the small Mammoth Ski Museum. Two rooms display photos and memorabilia describing the history of the region and development of the local ski area. The Mammoth Lakes Foundation has extensive landholdings and is working to develop future land use projects for the benefit of the local community. The Foundation is currently pursuing the construction of a larger theatre in partnership with Cerro Coso Community College, the Town of Mammoth Lakes, and other donors.
The 4 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $92,276.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2017 to 2018, from $9.0M to $7.1M (−21%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Government-grant reliance: 2017 3% · 2018 3% · 2019 7% · 2020 3% · 2022 5% · 2025 4%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 4 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Chief executive
Elizabeth Truax
Executive director
Board chair
Luan Mendel
Board Chair
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 5 funders to 6 funders, grant income fell $45k → $13k.
2 of 18 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 4% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of MAMMOTH LAKES FOUNDATION’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
MAMMOTH LAKES FOUNDATION leans on a few funders — its largest provides 40% of grant income and the top three 75%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
Largest funder’s share by year: 2017 56% · 2018 55% · 2019 52% · 2020 49% · 2021 53% · 2022 76% · 2023 78% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How long its funders stay
53% of MAMMOTH LAKES FOUNDATION's funders are still giving 3 years after their first grant; 78% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
55% of MAMMOTH LAKES FOUNDATION's grant income comes from California funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $40k arriving through sponsors registered in 2 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Organizations like MAMMOTH LAKES FOUNDATION
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
21% of spending goes to programs.
Governance
Public support
82%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for MAMMOTH LAKES FOUNDATION: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds MAMMOTH LAKES FOUNDATION?
- MAMMOTH LAKES FOUNDATION (California) receives grants from 18 organizations whose IRS filings report $1,099,241 to it, the largest being The William and Kathryn Scripps Family Foundation ($435,000). 14 of them have funded it in more than one year.
- How many funders does MAMMOTH LAKES FOUNDATION have?
- IRS filings report 18 organizations giving $1,099,241 in grants to MAMMOTH LAKES FOUNDATION, 14 of which have funded it in more than one year.
- Who is the largest funder of MAMMOTH LAKES FOUNDATION?
- The William and Kathryn Scripps Family Foundation is the largest funder on record, with $435,000 in grants. The full list of funders is on this page.
- How can an organization like MAMMOTH LAKES FOUNDATION find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds Mammoth Lakes →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 18 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 22, 2026. What this page cannot tell you · view filing