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Advocacy· National Park and Regional

Grand Canyon Trust

“To protect and restore the Colorado Plateau.”

Home groundFlagstaff, AZ
Founded1985
KindAdvocacy 501(c)(3)
Led byEthan Aumack

Give to them ↗Every way to help ↓

The origin

How they started

The Grand Canyon Trust has guarded the Grand Canyon and the wider Colorado Plateau since 1985, working out of Flagstaff. It pushed for the 2012 ban on new uranium mining across roughly a million acres around the park, bought the North Rim Ranches to restore more than 800,000 acres of grazing land, and gave key support to the tribal campaigns behind Bears Ears and Grand Staircase-Escalante. It also backs the rights of the region’s Native peoples across the four-corners country.

Every year they sign one sentence and file it with the federal government: “SEE PART III, LINE 1.”

Where the money went, FY2025

The work, and what it cost

Reading every lease sale

$2.2M

THE ADMINISTRATION DECLARED A “NATIONAL ENERGY EMERGENCY” ON JANUARY 20, 2025, SETTING THE STAGE FOR A CONSEQUENTIAL YEAR FOR THE ENERGY PROGRAM.

Including $1,000 granted onward, most of it $42,000 to Utah State University.

Read it as they filed it
THE ADMINISTRATION DECLARED A "NATIONAL ENERGY EMERGENCY" ON JANUARY 20, 2025, SETTING THE STAGE FOR A CONSEQUENTIAL YEAR FOR THE ENERGY PROGRAM. WE CLOSELY MONITORED FOR APPROVALS AND ACTIVITY AT THE EZ MINE AND PINYON PLAIN MINE. IN LATE 2025, WE DISCOVERED THAT A MONITORING WELL AT PINYON PLAIN MINE HAD DETECTED INCREASING LEVELS OF ARSENIC THROUGHOUT 2025, INCLUDING SEVERAL INSTANCES THAT EXCEEDED THE ALERT LEVELS SET IN THE MINE'S AQUIFER PROTECTION PERMIT. WE HAVE ALERTED PARTNERS, COCONINO COUNTY, SENATOR MARK KELLY'S OFFICE, THE HAVASUPAI TRIBE, AND THE GRAND CANYON TRIBAL LEADERS' COALITION OF ANY RELEVANT MINING UPDATES. AT THE WHITE MESA MILL, THE TRUST AGAIN SUPPORTED THE WHITE MESA CONCERNED COMMUNITY IN HOSTING ITS ANNUAL SPIRITUAL WALK AND PROTEST, WHICH GARNERED RECORD PARTICIPATION AND MEDIA COVERAGE IN 2025.

IRS Form 990 Part III, fiscal year 2025, signed under penalty of perjury.

Reading every lease sale

$1.5M

THROUGH THE WORK OF OUR CULTURAL LANDSCAPES, GRAND CANYON, ENERGY, AND UTAH AND ARIZONA PUBLIC LANDS PROGRAMS, THE TRUST STRIVES TO EFFECT CHANGE IN CONCERT WITH TRIBAL COMMUNITIES AND NATIONS.

Including $47,952 granted onward.

Read it as they filed it
LAND:THROUGH THE WORK OF OUR CULTURAL LANDSCAPES, GRAND CANYON, ENERGY, AND UTAH AND ARIZONA PUBLIC LANDS PROGRAMS, THE TRUST STRIVES TO EFFECT CHANGE IN CONCERT WITH TRIBAL COMMUNITIES AND NATIONS. WE AUTHENTICALLY SUPPORT TRIBAL LEADERSHIP AND ALWAYS SUPPORT TRIBAL SOVEREIGNTY. SUPPORT FOR TRIBAL COMMUNITIES AND NATIONS SERVES AS THE CORNERSTONE OF THE TRUST'S CONSERVATION WORK ON THE COLORADO PLATEAU. THROUGHOUT 2025, WE HAVE CONTINUED TO ADVOCATE FOR THE CONTINUED PROTECTION OF BAAJ NWAAVJO I'TAH KUKVENI - ANCESTRAL FOOTPRINTS OF THE GRAND CANYON, AND GRAND STAIRCASE-ESCALANTE NATIONAL MONUMENTS. AT THE REQUEST OF TRIBAL LEADERS AND WORKING WITH EACH INTER-TRIBAL COALITION, THE TRUST HELPED CONVENE AN INTER-MONUMENT, INTERTRIBAL GATHERING THAT INCLUDED LEADERS AND STAFF FROM ALL THREE OF OUR PRIORITY MONUMENTS (BEARS EARS, BAAJ NWAAVJO I'TAH KUKVENI, AND GRAND STAIRCASE-ESCALANTE). THE GATHERING LED TO A COMMITMENT TO GREATER COMMUNICATION BETWEEN TRIBAL COALITIONS AND AN INTEREST IN INFORMATION-SHARING VIA FIELD TOURS.IN THE GRAND CANYON SPACE, WE GREW PARTICIPATION IN THE INTERTRIBAL CENTENNIAL CONVERSATIONS GROUP (ICCG) GRASSROOTS BODY, BOTH IN NUMBERS AND WITH INCREASED YOUTH REPRESENTATION. THIS IS ALL THE MORE IMPORTANT AS GRAND CANYON NATIONAL PARK PIVOTS TO WORKING EXCLUSIVELY WITH TRIBAL LEADERS INSTEAD OF GRASSROOTS LEADERS TO MANAGE A LANDSCAPE WITH COMPLEX HISTORIES WHERE COMMUNITY AND CULTURAL VOICES ALSO MATTER. BUT THE MOST SIGNIFICANT GRAND CANYON-RELATED WORK IN 2025 WAS RESPONDING TO THE AFTERMATH OF THE DRAGON BRAVO AND WHITE SAGE FIRES, WHICH BURNED ACROSS 200,000 ACRES OF THE NORTH RIM AND NEARLY OVERTOOK KANE RANCH. WE ENGAGED READILY WITH AGENCY STAFF AND OTHER PARTNERS TO TRACK DAMAGE AND BEGIN PROACTIVE PLANNING FOR THE REBUILD AND RESTORATION OF THE AREA. WE ARE WORKING TO SUPPORT A REBUILDING PROCESS THAT INCLUDES TRIBES AND NATIVE BUSINESSES AND THAT IS LOCALLY INFORMED.PUBLIC LANDS:IN UTAH, OUR WORK CONTRIBUTED TO THE PROTECTION OF OLD-GROWTH TREES ACROSS 91,557 ACRES OF ROADLESS AREAS ON NATIONAL FORESTS, AND WE HELPED PREVENT POST-FIRE SEEDING OF HARMFUL NON-NATIVE SPECIES ACROSS 30,364 ACRES. OUR ROADLESS RULE ADVOCACY FILLED AN IMPORTANT NICHE, FOCUSING ON UTAH FORESTS AND OFFERING SUPPORT FOR UTAH TRIBAL LEADERS. IN ARIZONA, WE FACILITATED THE DEVELOPMENT OF A 10-YEAR-PLAN FOR POST-FIRE FOREST RESTORATION ON THE KAIBAB PLATEAU, WHICH HAS NOW BEEN AGREED TO BY A DIVERSE GROUP OF STAKEHOLDERS. FINALLY, WE CONTINUED WITH OUR RESTORATION EFFORTS, COMPLETING 16 STEWARDSHIP AND RESTORATION PROJECTS ACROSS THE PLATEAU THAT FOCUSED ON RIPARIAN-AREA PROTECTION, WILDLIFE HABITAT IMPROVEMENT, AND POST-FIRE AND DROUGHT MITIGATION. WATER:IN 2025, WE BECAME MORE ACTIVE IN THE GROUNDWATER SPACE, WHERE, ALONGSIDE COALITIONS AND PARTNERS, WE CO-LED A NORTHERN ARIZONA GROUNDWATER WORKSHOP THAT ELEVATED RURAL AND TRIBAL VOICES AND STRENGTHENED COMMUNITY-DRIVEN ENGAGEMENT THROUGH DEEPER TRUST AND LISTENING. WE ALSO CONTINUED OUR COLORADO RIVER WORK, SEEKING TO MOVE FORWARD INNOVATIVE AND PRACTICAL SOLUTIONS TO THE GROWING CRISIS. WHILE THE COLORADO RIVER POST-2026 GUIDELINES PUBLIC PROCESS WAS DELAYED THROUGHOUT 2025, WE WORKED TO INFLUENCE THE GUIDELINES FOR COLORADO RIVER OPERATIONS. WE ALSO CONTINUE TO ENGAGE IN THE GLEN CANYON DAM ADAPTIVE MANAGEMENT PROGRAM PROCESS TO ENSURE DAM OPERATIONS PROTECT AND IMPROVE RESOURCES IN THE GRAND CANYON. WE STARTED IMPLEMENTING A LEGISLATIVE STRATEGY TO PUSH FOR A COMPREHENSIVE STUDY OF HOW GLEN CANYON DAM INFRASTRUCTURE CAN BE MODIFIED TO BENEFIT CONTINUED WATER DELIVERIES, POWER GENERATION, AND GRAND CANYON FLOWS AND RESOURCES WHEN WATER LEVELS ARE CRITICALLY LOW.

IRS Form 990 Part III, fiscal year 2025, signed under penalty of perjury.

Reading every lease sale

$721K

THE TRUST’S NATIVE AMERICAN PROGRAM FOCUSES ON SUPPORTING NATIVE VOICES AND THE ROLES OF NATIVE PEOPLES IN THE PROTECTION OF THE COLORADO PLATEAU.

Including $12,000 granted onward.

Read it as they filed it
NATIVE AMERICA:THE TRUST'S NATIVE AMERICAN PROGRAM FOCUSES ON SUPPORTING NATIVE VOICES AND THE ROLES OF NATIVE PEOPLES IN THE PROTECTION OF THE COLORADO PLATEAU. WE DO THIS BY FACILITATING DIALOGUE AMONG THE NATIVE AMERICAN TRIBES THAT HAVE RESIDED ACROSS THIS LANDSCAPE FOR THOUSANDS OF YEARS, AND WHO NOW CONTROL THE FUTURE OF SOME 30,000 SQUARE MILES OF THIS REGION.IN 2025, THE BLACK MESA COMMUNITY LAND USE PLAN WAS COMPLETED. IT IS A CRITICAL TOOL TO ENSURE COMMUNITY MEMBERS HAVE A VOICE IN THE REBUILDING PROCESS POST-COAL. THE PLAN HAS BEEN OFFICIALLY ADOPTED BY THREE OF THE FIVE LOCAL CHAPTER GOVERNMENTS. WE ALSO CONTINUED OUR COMMUNITY-BASED AGRICULTURAL WORK. THE LITTLE COLORADO RIVER AGRICULTURAL COOPERATIVE'S GOAL HAS BEEN TO ORGANIZE THE GROUP TO RAISE FUNDS AND FIND A CENTRAL HUB WHERE OPERATIONS CAN BE HOUSED. WITH TECHNICAL ASSISTANCE FROM THE NAVAJO NATION, IN 2025 THE COOPERATIVE SUBMITTED SEVERAL GRANT APPLICATIONS AND ATTRACTED TWO NEW FUNDERS, RAISING $25,000. THERE IS ALSO AN UNOFFICIAL AGREEMENT TO WORK DIRECTLY WITH THE TEESTO CHAPTER WHERE THE GROUP MEETS REGULARLY AND USES THE COMMUNITY GARDEN FOR WORKSHOPS. THERE WAS NO COLORADO PLATEAU INTERTRIBAL CONVERSATIONS (CPIC) GATHERING THIS YEAR, BUT CPIC MEMBERS WORKED WITHIN THEIR TRIBAL GOVERNMENTS TO SUPPORT LAND PROTECTION AND FARMING EFFORTS. THESE EFFORTS CONTINUE TO BUILD ON CPIC'S FOUR MAIN PILLARS OF FOCUS: HEALTH, SACRED SITES, WATER, AND LANGUAGE & CULTURE.

IRS Form 990 Part III, fiscal year 2025, signed under penalty of perjury.

Boots on the ground

$432K

IN 2025, 210 TRUST VOLUNTEERS COLLECTIVELY CONTRIBUTED 2,247 HOURS TO RESTORATION AND STEWARDSHIP PROJECTS ACROSS THE COLORADO PLATEAU.

Read it as they filed it
VOLUNTEER AND LEADERSHIP PROGRAMS: IN 2025, 210 TRUST VOLUNTEERS COLLECTIVELY CONTRIBUTED 2,247 HOURS TO RESTORATION AND STEWARDSHIP PROJECTS ACROSS THE COLORADO PLATEAU. VOLUNTEER SUPPORT HAS A RIPPLE-OUT EFFECT WITH BENEFITS FOR OUR ORGANIZATION, OUR EXTERNAL PARTNERS, AND THE VOLUNTEERS THEMSELVES. THE IMPACTS OF VOLUNTEER CONTRIBUTIONS ARE FAR-REACHING, AS WE SUPPORT AGENCIES AND PARTNERS WHO ARE STRETCHED THIN, ESPECIALLY DURING THE DOI AND USDA DOWNSIZING IN 2025. CURRENTLY, ONE VOLUNTEER HOUR EQUATES TO $34.79 (DO GOOD INSTITUTE), THUS WE HAVE CONTRIBUTED $78,173 IN WORKFORCE SUPPORT ACROSS THE COLORADO PLATEAU'S IMPERILED LANDSCAPES. IN 2025, WE PLANNED 17 AND EXECUTED 15 PROJECTS; ONE WAS CANCELLED DUE TO THE GOVERNMENT SHUTDOWN, AND ONE WAS CANCELLED DUE TO WASHED-OUT ROADS IN GRAND STAIRCASE-ESCALANTE NATIONAL MONUMENT. FOURTEEN OF THE 15 PROJECTS WERE MULTI-DAY EVENTS THAT REQUIRED SIGNIFICANT TIME AND ENERGY FROM VOLUNTEERS, STAFF, AND PARTNERS.THE RISING LEADERS PROGRAM, GUIDED BY THE PRINCIPLES OF STEWARDSHIP, RESILIENCE, HEALTH, AND CULTURAL VITALITY, SERVED 201 YOUNG LEADERS IN 2025, WHO JOINED US FROM ARIZONA, NEW MEXICO, UTAH, COLORADO, AND CALIFORNIA. THEY CONTRIBUTED 738 HOURS OF SERVICE ACROSS 15 DIFFERENT PROJECTS THAT TOOK PLACE ON SCHOOL CAMPUSES, INDIGENOUS-OWNED FARMS, TRIBAL LANDS, PUBLIC LANDS, AND ANCESTRAL HOMELANDS. THE FOURTH ANNUAL REGIONAL INTERTRIBAL INTERGENERATIONAL STEWARDSHIP EXPEDITION (RIISE) SERVED 18 INDIGENOUS YOUNG PEOPLE AGES 16-20, AND FOUR INDIGENOUS KNOWLEDGE HOLDERS (DINE, HOPI, HUALAPAI). PARTICIPANTS EXAMINED THE GRAND CANYON'S PAST, PRESENT, AND FUTURE DURING THIS NINE-DAY EXPEDITION. THROUGH STORYTELLING, ART, SONG, AND DISCUSSION, TRADITIONAL TEACHINGS WERE INTERGENERATIONALLY SHARED AT CULTURALLY SIGNIFICANT SITES FRAMING CONSERVATION AND ENVIRONMENTAL JUSTICE THROUGH A LENS OF REVERENCE AND CONNECTION. EIGHT LEADERSHIFT SCHOLARS, AGES 20-28, JOINED US FOR AN IMMERSIVE LEADERSHIP AND ENVIRONMENTAL JUSTICE TRAINING ACROSS DINE AND HOPI LANDS. SCHOLARS EXAMINED THE LEGACY OF ENERGY EXTRACTION ON BLACK MESA WHILE ALSO CONNECTING WITH COMMUNITY EXPERTS IMPLEMENTING A JUST TRANSITION. WE PILOTED A HYBRID LEARNING MODEL UTILIZING ONLINE LESSONS WITH HANDS-ON SERVICE PROJECTS IN THE FIELD. ACTIVITIES INCLUDED MOUNTING PLANT SPECIMENS FOR THE FIRST-EVER HOPI HERBARIUM, VISITING AN AGRICULTURE COOPERATIVE TO SEE NATIVE-LED REGENERATIVE ECONOMIES IN ACTION, AND EXPLORING INDIGENOUS ECO-TOURISM WITH TOUR GUIDES AND CATERERS, TO NAME JUST A FEW. THE SEEDS AND STORIES PROJECT, NOW IN ITS FIFTH YEAR, EXPANDED FROM 25 PARTICIPANTS IN 2024 TO 150 INDIVIDUALS IN 2025. OVER THE COURSE OF 13 WORKSHOPS ACROSS FOUR HIGH SCHOOLS, STUDENTS TOOK PART IN WEAVING YUCCA, HARVESTING VEGETABLES, PLANTING BEANS, TRADITIONAL COOKING, SEED SAVING, AND ETHNOBOTANY CLASSES. OUR PARTNERS - ELDER INDIGENOUS FARMERS, STORYTELLERS, AND PARK RANGERS - HELPED EXPAND YOUNG PEOPLE'S VISION FOR CONSERVATION CAREERS ROOTED IN CULTURAL TRADITION.

IRS Form 990 Part III, fiscal year 2025, signed under penalty of perjury.

Follow the dollar

70 cents of every dollar goes to the work

70¢
70¢ the work14¢ keeping the lights on16¢ finding the next member

Read it as a snapshot, not a scorecard. Splits move year to year with grants and campaigns, and healthy shops live all across this range.

Backed on the record by Wilburforce Foundation, William & Flora Hewlett Foundation, 444S Foundation and 3 others, latest filing FY24.

$4,810,292 programs, $988,675 management, $1,116,340 fundraising. Form 990, FY2025.

The people

Who does the work

48paid staff
210volunteers last year
23board members
41years on the ground
Ethan AumackExecutive DirectorComp $315,926, FY2025
Aaron PaulStaff AttorneyComp $146,222, FY2025
Chaitna SinhaStaff AttorneyComp $144,764, FY2025
Jim EnoteBoard ChairVolunteer, 2 hrs a week, $0

Chairs the 23-member board.

Honesty note: leadership comes from each year’s federal filing, so it can run a year behind. Orgs that claim their page can update it same-day. Work at GCT? Claim this page.

Those 210 volunteers are people who decided this ground was theirs to defend. If GCT is fighting for your place too, the matchmaker will find your way in.

Make it 211

The record

The court record

And 4 more in our case database: a selection we track, not their full docket.

14 years of filings

Total revenue by fiscal year, as filed. Point at the line for any year.

$10M$17.0M FY2520112025
Total revenue by fiscal year
YearRevenue
2011$5,455,489
2012$4,885,574
2013$4,429,057
2014$3,893,693
2015$5,398,787
2016$5,404,420
2017$7,118,885
2018$6,628,910
2019$7,102,371
2020$6,623,592
2021$9,915,125
2022$13,167,047
2023$17,148,112
2025$16,995,292

From $5.5M in 2011 to $17.0M in FY25, across 14 public filings. The 2023 peak of $17.1M reads like one-time gifts, so trust the line, not the peak.

Fights alongside Sierra Club (4 shared cases), Center for Biological Diversity (3 shared cases), Great Old Broads for Wilderness (2 shared cases), National Parks Conservation Association (2 shared cases) and Natural Resources Defense Council (2 shared cases) and 10 more. Same case, same side, on the federal docket.

The record

On the Hill

Grand Canyon Trust has hired federal lobbyists: 6 filings from 2021 to 2022. The filings, at the Senate.

Most filed on real estate/land use/conservation.

Their ground

The places they defend

See every threatened place on one map, and who stands for each.

Where and what
Federal landsNational Park Service · Bureau of Land Management · U.S. Forest Service · Bureau of Reclamation
Active inArizona · Utah · Colorado · New Mexico
Who writes the rules where they work

Across the 4 states where they work, the congressional delegations average 49 of 100 on public lands. See the full scorecard

More groups in Arizona

Ways in

How to help

Stand with Grand Canyon Trust

41 years on the ground, 210 volunteers, 70 cents of every dollar on the line. That is who is holding it. There is room for one more.

Sources and methodFinancials, headcounts, and program text: IRS Form 990, FY2025 and 13 prior filings via ProPublica Nonprofit Explorer, EIN 86-0512633. Leadership and compensation: Form 990 Part VII and the return’s signature block, FY2025 filing. Grantees: Schedule I, same filing. Court record: CourtListener dockets in the MTJP litigation database (2 linked cases: 1 won, 1 lost). Allies: co-litigation edges derived from the same dockets, same case and same side. Funders: the funders’ own returns (Schedule I and 990-PF Part XV) via ProPublica, names and years only. Lobbying: Senate LDA filings naming GCT as client or registrant, read from the MTJP LDA corpus. Place links: MTJP editorial curation with per-link sources. Org-reported figures are always labeled. Data verified as of 2026-09-23. Nothing on this page is pay-to-play.