Classified for credit

Former Hay estate now federal wildlife refuge with forest and lake trails — supports wildlife ecology, forest biology, and New Hampshire natural history.

Urban freshwater tidal marsh and National Wildlife Refuge — covers wetland ecology, migratory bird biology, and Delaware River watershed conservation.

Urban NWR protecting the largest freshwater tidal marsh in Pennsylvania — covers wetland ecology, migratory bird biology, and urban conservation.

Audubon's former home, now a nature center with bird-banding and habitat trails — ornithology and history of science.

Kentucky state park honoring naturalist John James Audubon — combines ornithology, native woodland ecology, and the history of American natural history illustration.

Illinois nature preserve and education center on the Mississippi River bluffs with trails, native plant gardens, and ecology programming for all ages.

Arkansas River reservoir state park on the Colorado high plains — covers semi-arid riparian ecology, migratory bird habitat, and Great Plains hydrology.

Traditional Japanese stroll garden on Long Island — landscape design principles, native and Asian plant species, and garden ecology.

Mississippi state park on Sardis Lake with trails, wildlife habitat, and ranger programs — ecology, geography, and outdoor PE.

Delaware Bay-area beach within Cape Henlopen State Park providing access to Atlantic coastal ecology, shorebird habitat, and tidal zone observation.

Small petting zoo with domestic and farm animals — basic animal husbandry, zoology, and hands-on animal interaction for young learners.

Township nature center with trails, ponds, and wildlife programming — local ecology, native species identification, and outdoor observation skills.

Observation tower within Jonathan Dickinson State Park offering views of Florida scrub and river ecosystems — wildlife observation and ecological geography.

State park in the Blue Ridge foothills with mountain streams and diverse forest ecology — supports watershed science, native species study, and trail PE.

Carolina bay lake state park with rare pocosin wetland ecology, native wildlife, and interpretive trails for biology and geography study.

Large reservoir state recreation area with wildlife observation, riparian ecology, and ranger programming — supports biology, conservation, and physical education.

Utah reservoir state park with wetland habitat for waterfowl observation, watershed ecology, and Rocky Mountain geography.

Whidbey Island state park with beach and forest — covers Puget Sound coastal ecology, tidal biology, and Pacific Northwest forest habitats.

Audubon Society coastal sanctuary on Georgetown Peninsula — shorebird and migratory species observation, tidal ecology, and conservation biology.

Outdoor wildlife and nature trail experience near the Ark Encounter site covering animal habitats and basic zoology in a walking-tour format.

Florida Institute of Technology campus botanical garden — covers subtropical plant diversity, horticultural science, and native Florida ecosystem botany.

Former Episcopal college grounds turned state park with mature hardwood forest — supports ecology field study, Illinois natural history, and outdoor PE.

Working educational farm in Alabama covering sustainable agriculture, animal husbandry, and farm-to-table food systems.

Mobile zoo and petting barnyard with live farm and exotic animals — introduces animal biology, classification, and animal husbandry for young learners.