MOUNTAIN STUDIES INSTITUTE INC

As filed

Subsection

03

NTEE code

C30

Classification

1000

Street

162 STEWART ST UNIT A

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2025

• MOUNTAIN STUDIES INSTITUTE MOBILIZED NEARLY 3,000 VOLUNTEERS AND PROGRAM PARTICIPANTS IN COMMUNITY SCIENCE INITIATIVES IN 2025 TO COMPLEMENT THE WORK OF OUR RESEARCHERS IN MONITORING FOREST, WATER, AND WILDLIFE HEALTH. WITH STAFF SUPPORT AND AUNIQUELY DESIGNED SET OF PROTOCOLS, VOLUNTEERS GAVE THEIR TIME TO MONITOR BIGHORN, PIKA AND THE ENDANGERED PAGOSA SKYROCKETAS WELL AS SUPPORT WATER QUALITY TESTING. OUR TEAM OF SCIENTISTS WORKED ACROSS THE SAN JUAN MOUNTAIN REGION TO INCREASECOVERAGE OF SNOWPACK AND FOREST MONITORING, IMPLEMENT SNOW SMART FORESTRY INITIATIVES, ADVANCE LOW TECH ECOLOGICALRESTORATION IN KEY AREAS, AND HELP BUILD CAPACITY OF COMMUNITY BASED ORGANIZATIONS TO INTEGRATE SCIENCE INTO THEIR PLANNING ANDDECISION-MAKING. WE PARTNERED WITH FEDERAL, STATE, LOCAL AND TRIBAL GOVERNMENTS AS WELL AS PRIVATE FOUNDATIONS TO ADVANCEENVIRONMENTAL RESEARCH, MONITORING AND EDUCATION ACROSS THE COMMUNITIES OF THE SAN JUAN MOUNTAINS.

  Expenses $1,411,582 · Revenue $591,143

As filed on the 2025 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2025

As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

• 2025

  Revenue

  $1,620,859

  Expenses

  $1,776,122

  Contributions

  $1,029,716

  Grants paid

  $0

• 2024

  Revenue

  $1,795,784

  Expenses

  $1,723,549

  Contributions

  $1,238,954

  Grants paid

  $0

• 2023

  Revenue

  $1,614,270

  Expenses

  $1,672,323

  Contributions

  $1,131,507

  Grants paid

  $0

• 2022

  Revenue

  $1,380,013

  Expenses

  $1,542,608

  Contributions

  $906,969

  Grants paid

  $0

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

• 2021 · 990

  Revenue

  $2,011,165

  Expenses

  $2,005,563

  Assets (EOY)

  $837,750

• 2020 · 990

  Revenue

  $2,020,169

  Expenses

  $1,833,600

  Assets (EOY)

  $936,212

• 2019 · 990

  Revenue

  $1,565,089

  Expenses

  $1,531,609

  Assets (EOY)

  $509,049

• 2018 · 990

  Revenue

  $1,180,853

  Expenses

  $1,128,556

  Assets (EOY)

  $560,858

• 2017 · 990

  Revenue

  $1,095,324

  Expenses

  $1,066,580

  Assets (EOY)

  $346,165

• 2016 · 990

  Revenue

  $787,766

  Expenses

  $745,846

  Assets (EOY)

  $388,280

• 2015 · 990

  Revenue

  $556,017

  Expenses

  $567,620

  Assets (EOY)

  $268,107

• 2014 · 990

  Revenue

  $587,610

  Expenses

  $572,515

  Assets (EOY)

  $217,022

• 2013 · 990

  Revenue

  $392,251

  Expenses

  $434,104

  Assets (EOY)

  $180,682

• 2012 · 990

  Revenue

  — not reported

  Expenses

  $411,163

  Assets (EOY)

  $304,491

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all. Showing the 10 most recent; the API carries the rest.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

• NATIONAL FISH AND WILDLIFE FOUNDATION

  $373,856

  2023 · RESTORE MANCOS RIVER HABITAT FOR NATIVE FISH

• WILDLIFE CONSERVATION SOCIETY

  $83,285

  2022 · CONSERVATION

• PEW CHARITABLE TRUSTS

  $57,500

  2022 · Policy

• NATURE CONSERVANCY

  $41,318

  2024 · CONSERVATION ACTIVITIES

• NATIONAL FOREST FOUNDATION

  $41,248

  2022 · SUPPORT US NATIONAL FORESTS AND GRASSLANDS

• PEW CHARITABLE TRUSTS

  $41,200

  2023 · Policy

• NATIONAL FOREST FOUNDATION

  $40,477

  2024 · CONSERVATION EFFORTS AND COMMUNITY ENGAGEMENT

• PEW CHARITABLE TRUSTS

  $34,000

  2024 · Policy

• NATURE CONSERVANCY

  $32,143

  2023 · CONSERVATION ACTIVITIES

• CHOOSE OUTDOORS INC

  $25,000

  2024 · CLOSE OUT GRANT

The 10 largest by cash amount. The API serves every itemized grant.

Other IRS files