Classified for credit

New River Gorge area overlook and parkland — Appalachian geology, forest ecology, and river valley geography.

Audubon-affiliated urban nature center along the Scioto River — covers riparian bird ecology, watershed health, and urban conservation.

Northern Michigan natural area with boardwalk trails through wetlands and fen — covers Great Lakes bog ecology, native plant communities, and watershed biology.

College-affiliated arboretum in Bath, PA — covers native tree identification, plant taxonomy, and temperate-forest ecology on a self-guided or docent-led walk.

Mass Audubon wildlife sanctuary with meadow and forest habitats — field ecology, native species identification, and conservation biology.

State wildlife area in the Sacramento Valley with managed wetlands — supports waterfowl ecology, migratory bird study, and wetland biology.

Washington coastal state park on the Pacific — beach ecology, marine science, cranberry agriculture context, and coastal geography.

Kentucky state park built around a reservoir with forested gorges — supports lessons in Appalachian ecology, lake hydrology, and regional wildlife biology.

Demonstration wildlife garden on the Great Bay estuary — native plant ecology, pollinator biology, and coastal habitat conservation.

Federally designated estuary research reserve with a discovery center — covers tidal ecology, estuarine biology, and coastal watershed science.

National Wildlife Refuge protecting Great Bay estuary — covers estuarine ecology, shorebird biology, and tidal habitat conservation.

Small municipal zoo with native and exotic animals — supports animal classification, zoology, and conservation awareness for elementary-age students.

Working state-park farm and nature area — covers dairy farming, agricultural ecology, and New England natural habitats through self-guided trails.

Ecological research preserve in Connecticut with guided programs — covers forest ecology, wildlife habitat, and hands-on environmental science.

Coastal estuary wildlife area at the mouth of the Connecticut River — tidal ecology, migratory birds, and salt marsh biology.

Federally managed wetland refuge along the Sudbury River — waterfowl biology, wetland ecology, and migratory bird study.

Federally protected freshwater marsh on the Sudbury River — wetland ecology, migratory bird identification, and watershed biology via self-guided trails.

Federal wildlife refuge in the Sudbury River valley — freshwater wetland ecology, migratory bird study, and conservation biology.

Staffed nature center in Wichita with live animals and prairie exhibits — covers Great Plains ecology, native wildlife, and Kansas natural history.

Oklahoma state park in the Wichita Mountains foothills — supports Great Plains ecology, native grassland study, and outdoor education.

State park atop Mississippi River bluffs with panoramic views — covers river valley geography, bluff geology, and Upper Midwest forest ecology.

Outdoor sculpture garden set along the Connecticut River — combines environmental art appreciation with riparian ecology observation.

Mississippi River state park with river overlooks and trails — river ecology, floodplain geography, and Mississippi Delta natural history.

Campground on the Great Salt Lake shoreline — hypersaline lake ecology, migratory bird habitat, and Utah desert geography.