Classified for credit

Florida state park at a freshwater spring with swimming, wildlife, and a historic sugar mill ruin — supports freshwater ecology, geology, and Florida history.

Iconic Utah state park with sheer canyon views above the Colorado River — covers Colorado Plateau geology, erosion, and desert ecology.

Large WA state park straddling a tidal strait with old-growth forest and marine shoreline — covers tidal ecology, Pacific Northwest geology, and coastal geography.

Accredited sculpture museum with 35-acre outdoor park — surveys contemporary American sculpture in a landscape setting with rotating indoor exhibits.

Residential and day-use environmental learning center in Minnesota's northwoods — structured ecology programs, forestry, and wildlife biology.

Wild horse eco-sanctuary in Wyoming offering guided tours — covers equine biology, range ecology, wild horse management policy, and Western land stewardship.

Delaware aerospace education center offering hands-on aviation and space science programs — covers aerodynamics, physics, and STEM career pathways.

Hands-on children's museum on the Wilmington riverfront — interactive exhibits in physical science, engineering, and early literacy.

Natural history and science museum with fossil, geology, and wildlife exhibits covering earth science and regional ecology.

Delaware barrier-island state park with ocean beach and inland bays — covers coastal geology, Atlantic shoreline ecology, and barrier-island formation.

National recreation area spanning the Delaware River corridor — river ecology, watershed biology, and Appalachian geography with ranger programs.

National Recreation Area along the Delaware River — river ecology, watershed science, and Appalachian geography with NPS ranger programs.

NPS recreation area protecting 70,000 acres of Delaware River gorge — covers river ecology, glacial geology, watershed biology, and riparian habitats.

State natural area featuring dramatic sandstone rock formations carved by the Wisconsin River — covers fluvial geology, erosion, and riparian ecology.

Children's discovery museum focused on Chesapeake Bay and Delmarva Peninsula ecology — covers regional natural history, estuary science, and local culture.

Minuteman Missile NHS launch control facility — Cold War nuclear deterrence history, command-and-control systems, and geopolitical strategy.

Preserved Minuteman ICBM launch facility managed by NPS — Cold War military history, nuclear deterrence policy, and missile engineering.

Large Alaska state park adjacent to Denali with wilderness trails and Denali views — glacier geology, subarctic ecology, and physical geography.

Major urban botanic garden with 24 themed gardens covering plant taxonomy, ethnobotany, and global plant geography across 24 acres.

Working farm and botanic garden outside Denver with seasonal crops, native plants, and ecology programs covering plant biology and sustainable agriculture.

Major regional art museum with American and international collections — supports fine-arts and art-history curriculum with school programs.

120-acre botanical garden with native California and Japanese garden sections — supports plant biology, horticulture, and ecosystem identification.

1.6-million-acre national forest with ranger districts covering ecology, geology, volcanology, and old-growth forest biology.

Large desert botanical garden with 50,000+ plants representing Sonoran and global desert ecosystems — covers desert plant adaptations, ecology, and ethnobotany.