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GRAND TETON NATIONAL PARK FOUNDATION

EIN 83-0322668 MOOSE, WY

Browse the largest nonprofits in Wyoming

Revenue 2024
$24,510,153
Expenses 2024
$50,113,571

Program services were 94.6% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
T30
Classification
1000
Street
PO BOX 249

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 · 2024

Mission

Grand Teton National Park Foundation (the Foundation) is a private, nonprofit organization whose mission is to partner with Grand Teton National Park to steward, protect, and enhance all that is special in the park. Budget limitations, combined with increasing visitation, led the National Park Service to create partnerships with organizations like the Foundation to raise private money for special park needs. The Foundation initiates improvements, critical research, and projects that improve visitors experiences, creating a solid future for Grand Teton. Since 1997, the organization has raised funds for efforts that connect youth to nature, preserve cultural resources, protect wildlife and natural resources, and enhance visitor experiences. In addition, the Foundation has completed capital projects such as construction of the Craig Thomas Discovery and Visitor Center, the conservation of 1,280 acres of critical wildlife habitat that was formerly owned by the state of Wyoming, the renewal

Activities or mission (Part I)

GRANTS TO GRAND TETON NATIONAL PARK FOR THE PROTECTION, RESTORATION AND ENHANCEMENT OF PARK RESOURCES. THIS CONTRIBUTES TO THE EXPERIENCE OF THE 4.3 MILLION ANNUAL VISITORS.

  • State Lands/Kelly Parcel:In 2025, the Foundation supported the park in its decades-long effort to purchase the 640-acre Kelly parcel from the state of Wyoming. The Kelly parcel was the largest tract of unprotected land remaining within the boundaries of Grand Teton National Park. The elevated square-mile provides sweeping views of the Teton Range and includes critical habitat for numerous species of wildlife. The parcel is also located within a key migration corridor for pronghorn, elk, and mule deer. If the Kelly parcel was not permanently conserved as part of Grand Teton National Park, this inholding could have been developed, risking the loss of vital habitat in the Greater Yellowstone Ecosystemone of the last remaining, nearly intact temperate ecosystems on the planet. The permanent conservation of the Kelly parcel was a major conservation achievement for Grand Teton National Park and the Foundation in 2025.

    Expenses $38,489,192 · Grants $37,728,731

  • WINTER AND SUMMER TRAILS:The Foundation funds grooming three times per week of the 14-mile stretch of road between Taggart Lake Trailhead and Signal Mountain on the Teton Park Road. Regular grooming allows visitors to easily explore on Nordic skis, snowshoes, or foot to experience this special season in Grand Teton National Park. In the summer months, the Foundation is funding a multi-year effort to renew key destinations along the Teton Crest Traila 45-mile route through the parks high country that was originally constructed by the Civilian Conservation Corps in the 1930s. Summer 2025 marked the sixth year of project work on the Crest Trail. Improvements were completed near Marion Lake and Fox Creek Pass, making it more safe for hikers to this remote alpine area.

    Expenses $5,985,292 · Grants $5,825,196

  • MORMON ROW PRESERVATION: In partnership with Grand Teton, the Foundation has undertaken a multi-year project to renew the Mormon Row Historic Districtthe parks most popular cultural destinationwith the goals of preserving remaining structures and providing visitors with meaningful opportunities to connect with park history. This effort is, for the first time, holistically addressing preservation needs in the district and improving the ways visitors learn about and experience the remarkable legacy of these buildingsbringing the history of this place to life. Work continued in 2025 and focused on the Roy Chambers Homestead, which will be adaptively reused for employee housing. New siding and interior work was completed, and the structures will be available for seasonal workforce housing next summer. In 2026, the park will begin on-the-ground visitor experience improvements including modern interpretation, renewed wayfinding, and additional parking.

    Expenses $1,155,744 · Grants $1,079,397

  • WILDLIFE AND NATURAL RESOURCE CONSERVATION: Environmental shifts, invasive species, land use and development patterns, and changing visitation all threaten to disrupt the sensitive ecological relationships that characterize Grand Teton today. Projects supported by the Foundations wildlife and natural resources initiative make significant strides toward ensuring the long-term ecological integrity of Grand Teton National Park and the Greater Yellowstone Ecosystem. In 2025, the Foundation funded efforts focused on gray wolf ecology, ungulate monitoring, climate change impacts, sagebrush/grassland habitat restoration, bear-resistant food storage lockers, and more.

    Expenses $639,899 · Grants $629,522

  • YOUTH ENGAGEMENTA priority for Grand Teton National Park is to engage future park stewards by providing an introduction to the outdoors, conservation, and careers through in-depth programs. Three impactful efforts funded through the Foundations youth initiative introduce Grand Teton to a younger audience and offer educational and employment opportunities that keep participants actively involved in the outdoors as they begin to make career decisions:Youth Conservation Program employs 16 to 19-year-olds on Grand Tetons trail crew, accomplishing much-needed work while participants learn about park resources and develop conservation ethics. Tribal Youth Engagement provides hands-on opportunities for regional Native American youth to connect with nature and cultural history through week and month-long programs in Grand Teton.National Service Learning Corps offers ongoing career development and mentoring to young professionals who lead outdoor youth programming in their home cities.

    Expenses $467,768 · Grants $324,325

  • Reimagining Taggart LakeThe Foundation and Grand Teton National Park are working together to reimagine one of the parks cherished destinationsTaggart Lake. As the parks most frequently visited year-round trailhead, Taggart welcomes more than 300,000 people annually. Its popularity speaks to the magic of the place, but it also underscores the need for thoughtful renewal. Today, aging facilities, strained trails, and crowding place pressure on both visitors and the landscape. The Reimagining Taggart Lake project is reshaping this beloved destination so it remains welcoming, accessible, and ecologically resilient for generations. The projects guiding goals are:Create a smoother, safer, and more intuitive arrival.Protect riparian and lakeshore resources.Improve accessibility so people of all abilities can experience this landscape.Build a trail system that eases congestion and encourages sustainable use year-round.Restore degraded areas and safeguard the natural beauty that draws visitors here in the first place.2025 marked a year of meaningful progress. This year, early design concepts evolved into detailed construction documents while initial on-the-ground work began with the completion of the new bridge across Taggart Creek and the burial of overhead power lines near the trailhead. Work will continue next year with continued backcountry trail improvements and the start of trailhead renewal.

    Expenses $301,121 · Grants $293,318

  • SNAKE RIVER GATEWAYS:Grand Teton National Park Foundation, in partnership with Grand Teton National Park, completed work at the third and final site to be improved as part of our multi-year campaign to address inadequate facilities and resource degradation at three popular access points on the Snake River. The Snake River Gateways campaign is enhancing visitors' experiences at Jackson Lake Dam, Pacific Creek, and Moose Landing. Project work continued at Moose Landing in April 2025. The goal at each site is to blend access, education, safety, and sustainability to create a sense of arrival that encourages visitors to engage with the river as a spectacular and essential natural resource. Priorities support significant improvements adapted to the needs of visitors, river conditions, and surrounding terrain that include: functional improvements to support visitors and recreationists of all abilities; restoration and resilience of shoreline habitats; and educational elements to inspire mindful discovery and stewardship.

    Expenses $288,706 · Grants $236,591

  • Ranger Support:The high peaks, mountain canyons, and glacial lakes of Grand Teton National Park draw recreationists from around the world who are eager to explore this iconic landscape. The Jenny Lake Rangers are the parks team of search and rescue professionals who provide a wide range of assistance to visitors in need. From injured climbers on the Grand Teton to hikers with sprained ankles only a few miles from the trailhead, the Jenny Lake Rangers are always ready to respond. Grand Teton National Park Foundation has provided private philanthropic support for this team since 2018. The main focus areas to advance ranger excellence in Grand Teton are to:Provide the highest quality training on a regular and recurring basis with an emphasis on search and rescueEnhance the park's ability to procure and replace specialized equipment, including personal protective equipment, and technology as it becomes availableProvide public outreach and education through programs and communication mediums to promote safety and prevent accidentsImprove facilities that support ranger operations and provide mental health support to all of Grand Tetons first responders

    Expenses $100,911 · Grants $99,179

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Leslie Mattson

    President

    Total calculated
    $692,855
    From this org
    $577,119
    From related orgs
    $0
    Other
    $115,736
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $317,658
    Bonus
    $31,856
    Other
    $34,865
    Deferred
    $261,350
    Nontaxable benefits
    $47,126
    Filer's total
    $692,855
  • Wayne Turner

    VP OF DEVELOPMENT

    Total calculated
    $230,423
    From this org
    $175,573
    From related orgs
    $0
    Other
    $54,850
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $160,302
    Bonus
    $15,271
    Other
    not reported
    Deferred
    not reported
    Nontaxable benefits
    $54,850
    Filer's total
    $230,423
  • Mary Patno

    ACCOUNTING

    Total calculated
    $202,427
    From this org
    $163,250
    From related orgs
    $0
    Other
    $39,177
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $147,979
    Bonus
    $15,271
    Other
    not reported
    Deferred
    not reported
    Nontaxable benefits
    $39,177
    Filer's total
    $202,427
  • Elise Delmolino

    VP of Operations

    Total calculated
    $172,428
    From this org
    $144,379
    From related orgs
    $0
    Other
    $28,049
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $134,108
    Bonus
    $10,271
    Other
    not reported
    Deferred
    not reported
    Nontaxable benefits
    $28,049
    Filer's total
    $172,428
  • Molly Ruffle

    SENIOR DEV OFFICER

    Total calculated
    $172,317
    From this org
    $164,111
    From related orgs
    $0
    Other
    $8,206
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $156,325
    Bonus
    $7,786
    Other
    not reported
    Deferred
    not reported
    Nontaxable benefits
    $8,206
    Filer's total
    $172,317
  • Ryan Kelly

    VP Part. Projects

    Total calculated
    $158,899
    From this org
    $141,271
    From related orgs
    $0
    Other
    $17,628
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $133,500
    Bonus
    $7,771
    Other
    not reported
    Deferred
    not reported
    Nontaxable benefits
    $17,628
    Filer's total
    $158,899
  • Chad Carlson

    Director

    Total calculated
    $0
    Hours/week
    1
  • Mary McCarthy

    Treasurer

    Total calculated
    $0
    Hours/week
    1
  • Sean O'Malley

    Director

    Total calculated
    $0
    Hours/week
    1
  • Affie Ellis

    Director

    Total calculated
    $0
    Hours/week
    1
  • Debbie Barker

    Director

    Total calculated
    $0
    Hours/week
    1
  • Bruce Bowen

    Director

    Total calculated
    $0
    Hours/week
    1
  • Lynn Larson

    Director

    Total calculated
    $0
    Hours/week
    1
  • Laura Davis

    Director

    Total calculated
    $0
    Hours/week
    1
  • Chip Nisbet

    Director

    Total calculated
    $0
    Hours/week
    1
  • Debbie Hechinger

    VICE CHAIR

    Total calculated
    $0
    Hours/week
    1
  • Jeff Heilbrun

    Director

    Total calculated
    $0
    Hours/week
    1
  • Tom Holland

    Secretary

    Total calculated
    $0
    Hours/week
    1
  • Jeff Willemain

    Director

    Total calculated
    $0
    Hours/week
    1
  • Douglas J MacKenzie

    Director

    Total calculated
    $0
    Hours/week
    1
  • Nancy McGregor Manne

    Director

    Total calculated
    $0
    Hours/week
    1
  • Annie Morita

    Director

    Total calculated
    $0
    Hours/week
    1
  • Gina Pate Pierce

    Director

    Total calculated
    $0
    Hours/week
    1
  • Ed Riddell

    Director

    Total calculated
    $0
    Hours/week
    1
  • Ethan Steinberg

    Director

    Total calculated
    $0
    Hours/week
    1

The first 25 listed. 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. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $24,510,153
    Expenses
    $50,113,571
    Contributions
    $23,057,463
    Grants paid
    $46,216,259
  • 2023
    Revenue
    $34,015,141
    Expenses
    $6,428,947
    Contributions
    $32,754,292
    Grants paid
    $3,087,217
  • 2022
    Revenue
    $10,610,613
    Expenses
    $5,987,226
    Contributions
    $10,221,916
    Grants paid
    $2,894,686

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
    $12,374,107
    Expenses
    $8,158,030
    Assets (EOY)
    $17,490,260
  • 2020 · 990

    Revenue
    $7,005,060
    Expenses
    $4,826,353
    Assets (EOY)
    $15,773,310
  • 2019 · 990

    Revenue
    $5,932,392
    Expenses
    $8,503,597
    Assets (EOY)
    $14,537,425
  • 2018 · 990

    Revenue
    $6,442,147
    Expenses
    $5,822,117
    Assets (EOY)
    $19,437,736
  • 2017 · 990

    Revenue
    $10,214,756
    Expenses
    $5,646,727
    Assets (EOY)
    $14,986,747
  • 2017 · 990

    Revenue
    $10,214,756
    Expenses
    $5,646,727
    Assets (EOY)
    $14,986,747
  • 2016 · 990

    Revenue
    $11,521,442
    Expenses
    $19,570,717
    Assets (EOY)
    $10,220,878
  • 2015 · 990

    Revenue
    $14,226,022
    Expenses
    $7,000,578
    Assets (EOY)
    $18,188,365
  • 2014 · 990

    Revenue
    $5,201,088
    Expenses
    $3,943,873
    Assets (EOY)
    $10,903,314
  • 2013 · 990

    Revenue
    $5,639,691
    Expenses
    $2,883,657
    Assets (EOY)
    $9,579,439

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

  • GRAND TETON NATIONAL PARK

    $46,216,259

    2024 TO PRESERVE THE PARK'S RESOURCES

  • GRAND TETON NATIONAL PARK

    $3,087,217

    2023 TO PRESERVE THE PARK'S RESOURCES

  • GRAND TETON NATIONAL PARK

    $2,894,686

    2022 TO PRESERVE THE PARK'S RESOURCES

Where these grants went next →

Grants received

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

Taxable family

From Schedule R Parts I, III and IV: entities that legally are the filer, and taxable partnerships, corporations and trusts it is related to. These record ownership and control, not shared board members or money.

Disregarded entities on its 2024 return

  • GTNPF HOLDINGS LLC

    Property holding and liability protection · WY · income $33,176 · assets $245,248

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 1 November 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.