Classified for credit

Arkansas Delta rail-trail state park along the Mississippi flyway — geography of the Delta, migratory bird ecology, and outdoor physical education.

National forest covering Mississippi Delta bottomland hardwoods — covers wetland forest ecology, hydrology, and Southern biodiversity in a working federal forest.

Small New Jersey nature center with trails and natural-area exhibits — local ecology, wildlife identification, and outdoor observation skills.

Nature center adjacent to Mystic with trails, live animals, and programs covering local ecology, wildlife biology, and habitat conservation.

Denver Audubon nature center with riparian habitat trails, bird banding programs, and ranger education focused on Front Range ecology and ornithology.

Seasonal light display at Denver Zoo — primarily an evening entertainment event with limited structured curriculum content.

University-managed nature park with trails and wetland habitats — supports ecology, field biology, and outdoor physical education.

Mass Audubon sanctuary with pond and forest trails in southern NH — wildlife observation, pond ecology, and native habitat field study.

Federally managed prairie wetland refuge in North Dakota — supports migratory bird biology, wetland ecology, and Great Plains geography.

National wildlife refuge visitor center in the prairie pothole region — covers migratory waterfowl biology, wetland ecology, and Great Plains geography.

State fish and wildlife area along the Kankakee River — wetland ecology, wildlife observation, and fisheries biology in a managed natural area.

Public desert plant garden in Sacramento — covers arid-land botany, drought-adapted plant biology, and xeriscape ecology.

DeSoto State Park picnic area near Little River Canyon — supports study of Appalachian watershed ecology, waterfalls, and native biodiversity.

NWR visitor center on the Missouri River flyway — covers migratory bird biology, wetland ecology, and federal wildlife conservation programs.

Alabama state park atop Lookout Mountain with waterfalls and canyon overlooks — covers Appalachian geology, forest ecology, and physical geography.

Reservoir state recreation area in the Cascade foothills — supports ecology, watershed biology, and Oregon geography with developed trails and interpretive access.

International wildlife refuge marsh unit along the Detroit River — Great Lakes coastal wetland ecology, migratory bird biology, and freshwater ecosystem study.

1,746-acre Nature Conservancy preserve in CT with marked trails through diverse forest — supports ecology, field biology, and environmental science.

Arkansas state park visitor center with geology exhibits, CCC-built structures, and trails covering Ozark ecology and watershed biology.

South Dakota park featuring a dramatic gorge and the Jesse James legend site — combines geology fieldwork with regional frontier history.

Connecticut state park centered on Chapman Falls and the Eight Mile River — covers waterfall geology, stream ecology, and glacial landforms.

South Carolina state park on Lake Jocassee in the Blue Ridge foothills — supports freshwater ecology, Appalachian geography, and outdoor education.

Interpretive nature center inside Devils Lake State Park — covers Wisconsin glacial geology, forest ecology, and native wildlife biology.

Michigan nature conservancy with trails through diverse habitats — supports field ecology, plant identification, and conservation biology.