Mission
HISTORICAL PRESERVATION AND EDUCATION
Small Public Charity
SOUTHERN MONO HISTORICAL SOCIETY INC
SOUTHERN MONO HISTORICAL SOCIETY INC is a Small Public Charity headquartered in MAMMOTH LAKES, CA. Financial data from the 2025 filing: $11K revenue, $71K expenses, $40K total assets. 3 publicly reported grants to this organization, totaling roughly $30K, appear in IRS filings.
EIN: 770053500
MAMMOTH LAKES, CA
Latest filing: 2025
Total Revenue$11K
Total Expenses$71K
Total Assets$40K
Grant Records3
Funding Total$30K
Filing Years2021–2025
Sample Grants Received
ARTS, CULTURE & HUMANITIES
$17,220
Unrestricted
$5,434
Unrestricted
$7,045
Showing up to 5 of 3 total records — full history available with membership.
Officers & Directors
Director
Dan Lyster
Director
Kevin Green
President & CEO
Robert Joki
Director
Tony Rojas
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $11K | $71K | $40K |
| 2024 | $63K | $75K | $81K |
| 2023 | $118K | $78K | $98K |
| 2022 | $73K | $88K | $52K |
| 2021 | $111K | $119K | $79K |
Between 2021 and 2025, reported annual revenue declined from $111K to $11K (-90%), with total assets most recently reported at $40K.
Interactive year-over-year charts and full filing details available with membership.