Mission
TO PROMOTE UNDERSTANDING AND CONSERVATION OF THE NATURAL, CULTURAL, AND HISTORICAL RESOURCES OF DEVILS TOWER NATIONAL MONUMENT THROUGH EDUCATION, PUBLIC INFORMATION, AND SERVICE.
Public Charity
DEVILS TOWER NATURAL HISTORY ASSOC
DEVILS TOWER NATURAL HISTORY ASSOC is a nonprofit organization categorized as Public Charity based in DEVILS TOWER, WY. Its most recent IRS filing (2025) reports revenue of $1.4M, expenses of $1.3M, total assets of $1.2M.
EIN: 836004786
DEVILS TOWER, WY
Single Organization Support
NTEE: A11
Latest filing: 2025
Total Revenue$1.4M
Total Expenses$1.3M
Total Assets$1.2M
Grant Records0
Filing Years2021–2025
Where $100 goes at Devils Tower Natural History Assoc
How Devils Tower Natural History Assoc divides every $100 it spends, from its own Form 990 filings, averaged across 8 years.
$81
Programs
the work itself
$19
Management
running the organization
$0
Fundraising
none reported
No fundraising costs are reported. That often means fundraising runs through a separate affiliated organization that files its own return.
Inside the $81 for programs
$81
The organization's exempt purpose is to provide interpretive material to visitors to Devils Tower national monument
Source: Form 990 filings with the IRS, latest fiscal year 2025. Shares are from the organization's reported expenses. Data by Imperigo; not affiliated with the IRS.
Officers & Directors
Chairman
Cindy Mosteller
VICE CHAIR
Jb King
Secretary
Jill Mackey
Executive Dir.
Sandra Mooney
Member
Scott Potter
Treasurer
Will Buckman
Officer compensation and complete director data available with membership.
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $1.4M | $1.3M | $1.2M |
| 2024 | $1.4M | $1.4M | $1.1M |
| 2023 | $1.3M | $1.2M | $1.1M |
| 2022 | $1.2M | $939K | $938K |
| 2021 | $400K | $295K | $720K |
Between 2021 and 2025, reported annual revenue grew from $400K to $1.4M (+242%), with total assets most recently reported at $1.2M.
Interactive year-over-year charts and full filing details available with membership.