Federal grants · Grants.gov

Open grants: Department of the Interior

36 grant opportunities from the Department of the Interior are accepting applications, and 0 more are forecast. Sorted by deadline, soonest first.

Grants.gov extract of Oct 25, 2026 · refreshed daily

Deadlines

Open grants, closing soonest first

OpportunityEligibleEst. fundingCloses
Cooperative Agreement for Affiliated Partner with the Southern Appalachian Cooperative Ecosystem Studies Unit (CESU)
Geological Survey · G27AS00165
Others$330KOct 30, 2026
F26AS00071 Cooperative Endangered Species Conservation Fund: Habitat Conservation Plan Land Acquisition Grants
Fish and Wildlife Service · F26AS00071
States$26.0MOct 30, 2026
F25AS00332 Highlands Conservation Act – Competitive Funding Round
Fish and Wildlife Service · F25AS00332
States$3.9MOct 31, 2026
F25AS00379 Highlands Conservation Act - Base Funding Round
Fish and Wildlife Service · F25AS00379
States$9.2MOct 31, 2026
Exploring and Enhancing Outdoor and Heritage Tourism in the Chesapeake Bay Watershed
National Park Service · P27AS00032
States, Counties, Cities & townships +11$1.0MNov 4, 2026
WATER RESOURCES RESEARCH ACT PROGRAM NATIONAL COMPETITIVE GRANTS FY2026 (104g General)
Geological Survey · G27AS00164
Others$463KNov 12, 2026
Cooperative Agreement for Affiliated Partner with the North Atlantic Coast Cooperative Ecosystem Studies Unit (CESU)
Geological Survey · G27AS00077
Others$350KNov 14, 2026
Cooperative Agreement for affiliated Partner with Californian Cooperative Ecosystem Studies Unit
Geological Survey · G27AS00037
Others$35KNov 14, 2026
Cooperative Agreement for affiliated Partner with Great Lakes-Northern Forest Cooperative Ecosystem Studies Unit
Geological Survey · G27AS00049
Others, Unrestricted$485KNov 14, 2026
Cooperative Agreement for Affiliated Partner with the Hawaiʻi-Pacific Islands Cooperative Ecosystem Studies Unit (CESU)
Geological Survey · G27AS00073
Others$435KNov 14, 2026
Cooperative Agreement for Affiliated Partner with the Rocky Mountains Cooperative Ecosystem Studies Unit (CESU)
Geological Survey · G27AS00072
Others$375KNov 14, 2026
Cooperative Agreement for Affiliated Partner with the Colorado Plateau Cooperative Ecosystem Studies Unit (CESU)
Geological Survey · G27AS00080
Others$90KNov 14, 2026
Cooperative Agreement for Affiliated Partner with the Pacific Northwest Cooperative Ecosystem Studies Unit (CESU)
Geological Survey · G27AS00078
Others$200KNov 14, 2026
Cooperative Agreement for Affiliated Partner with the Pacific Northwest Cooperative Ecosystem Studies Unit (CESU)
Geological Survey · G27AS00074
Others$360KNov 14, 2026
Cooperative Agreement for Affiliated Partner with the Great Lakes-Northern Forest Cooperative Ecosystem Studies Unit (CESU)
Geological Survey · G27AS00079
Others$150KNov 14, 2026
Cooperative Agreement for affiliated Partner with Rocky Mountain Cooperative Ecosystem Studies Unit
Geological Survey · G27AS00042
Others$100KNov 14, 2026
Cooperative Agreement for affiliated Partner with Northern Great Plains Cooperative Ecosystem Studies Unit
Geological Survey · G27AS00052
Others$450KNov 14, 2026
Cooperative Agreement for affiliated Partner with Chesapeake Watershed Cooperative Ecosystem Studies Unit
Geological Survey · G27AS00048
Others$450KNov 14, 2026
F26AS00030 Cooperative Endangered Species Conservation Fund: Recovery Land Acquisition Grant Program
Fish and Wildlife Service · F26AS00030
States$14.2MNov 20, 2026
Native American Affairs: Fiscal Year 2025 Colorado River Basin Tribal Drought Resiliency Program
Bureau of Reclamation · R26AS00021
Tribal governments, Others$6.0MNov 20, 2026
F26AS00023 FY2026 Prescott Marine Mammal Rescue and Response Grant Program
Fish and Wildlife Service · F26AS00023
States, Counties, Cities & townships +8$2.4MNov 30, 2026
F26AS00104 State ANS Management Plan 2026
Fish and Wildlife Service · F26AS00104
States, Others$4.1MDec 16, 2026
F26AS00083 Aquatic Invasive Species Grants to Great Lakes States - Fiscal Year 2026 Great Lakes Restoration Initiative
Fish and Wildlife Service · F26AS00083
Others, Unrestricted$3.7MDec 31, 2026
F26AS00085 Aquatic Invasive Species Interjurisdictional Grants to the Great Lakes States and Tribes - Fiscal Year 2026 Great Lakes Restoration Initiative
Fish and Wildlife Service · F26AS00085
Others, Unrestricted$924KDec 31, 2026
F26AS00084 Aquatic Invasive Species Grants to Great Lakes Tribes - Fiscal Year 2026 Great Lakes Restoration Initiative
Fish and Wildlife Service · F26AS00084
Others, Unrestricted$300KDec 31, 2026
National Parks Business Plan Internship
National Park Service · P26AS00055
States, Counties, Cities & townships +7$1.7MJan 4, 2027
F26AS00088 Endangered Species Conservation – Wolf Livestock Loss Compensation and Prevention
Fish and Wildlife Service · F26AS00088
States, Tribal governments$1.4MJan 15, 2027
F26AS00105 National Fish Passage Program
Fish and Wildlife Service · F26AS00105
Unrestricted$15.0MApr 30, 2027
Title XVI Water Reclamation and Reuse Projects
Bureau of Reclamation · R26AS00079
Others$40.0MAug 26, 2027
WaterSMART: Desalination Construction Projects
Bureau of Reclamation · R26AS00034
Others$120.0MAug 26, 2027
WaterSMART Enhancing Water Resources Projects
Bureau of Reclamation · R26AS00017
Others$60.0MSep 8, 2027
NPS Cooperative Ecosystems Studies Units (CESU) Master Cooperative Agreements
National Park Service · P23AS00132
Others—Dec 31, 2027
WaterSMART Cooperative Watershed Management Program
Bureau of Reclamation · R26AS00349
Others$25.0MFeb 15, 2028
F24AS00298 Cooperative Agriculture
Fish and Wildlife Service · F24AS00298
Individuals, Small businesses—Mar 7, 2029
Outdoor Recreation Legacy Partnership Program (ORLP) Recurring Notice 5 Year
National Park Service · P26AS00125
States, Tribal governments, Others$85.0MNov 1, 2030
Readiness and Recreation Initiative (RARI) – Recurring 5 Year Notice
National Park Service · P26AS00146
States, Others$9.0MNov 30, 2030

From Grants.gov's public daily extract. Open means the application deadline hasn't passed (or, where no deadline is posted, the notice hasn't been archived). Funding is the agency's estimate of total program funding, where stated. Always confirm deadlines and eligibility on Grants.gov before applying.

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