Classified for credit

Pennsylvania state park on the Pocono Plateau summit — covers Appalachian mountain ecology, geology, and panoramic geographic orientation.

TVA-era lake and forest state park in the Cumberland foothills — covers freshwater ecology, forest biology, CCC/New Deal history, and outdoor recreation science.

Large undeveloped wildlife management area in RI — field study of forest ecology, wildlife habitat, and conservation land management.

Undeveloped state park in the Savage River watershed — forest ecology, watershed biology, and Appalachian geography via hiking trails.

South Dakota state recreation area along the Big Sioux River — covers Great Plains riparian ecology, wildlife observation, and outdoor recreation.

West Texas state park centered on a natural spring covers arid-land ecology, geology of the Edwards Plateau, and desert wildlife habitat.

Federal wildlife refuge on Minnesota prairie glacial terrain — covers grassland and wetland ecology, migratory birds, and Great Plains biogeography.

Minnesota NWR visitor center on the Minnesota River with wetland and prairie habitat — supports migratory waterfowl biology and prairie ecosystem study.

Self-guided auto tour through a Minnesota prairie wildlife refuge — covers grassland ecology, migratory bird biology, and prairie geography.

Ozark state park along Big Sugar Creek — covers Ozark ecology, stream biology, and native plant and animal identification.

Undeveloped CT state park with forested trails and kettlepond — supports ecology, glacial geology, and freshwater habitat study.

NPS visitor center for Bighorn Canyon — covers canyon geology, bighorn sheep ecology, and high-desert geography of the Wyoming-Montana border.

Desert riparian refuge along the Bill Williams River — supports study of Sonoran Desert ecology, migratory bird habitat, and Colorado River watershed geography.

NWR visitor center on the lower Colorado River — covers riparian ecology, migratory bird biology, and desert watershed geography.

Small family-run petting zoo in North Las Vegas — hands-on introduction to domestic and farm animal care; basic animal biology for young children.

Formal azalea garden on the Biltmore Estate — covers horticulture, plant taxonomy, and landscape design within a Gilded Age estate context.

Formal rose garden on the Biltmore Estate grounds with hundreds of cultivated varieties — supports botany, plant classification, and horticultural study.

Historic walled kitchen and cutting garden on Biltmore Estate — supports horticulture, plant science, and formal garden design study.

Coastal Maine state park with rocky shoreline — intertidal ecology, coastal geology, and outdoor physical education.

Audubon wildlife sanctuary with nature center and trails — bird biology, Pacific Northwest ecology, and wildlife rehabilitation in a working sanctuary.

Undeveloped barrier-island reserve at the NC/SC border — coastal ecology, dune succession, shorebird habitat, and estuarine biology.

Private nature sanctuary in Thomasville with native habitats and bird-watching programs — covers southeastern bird ecology and old-growth longleaf pine biology.

Botanical garden adjacent to a public library — combines plant biology and ecology study with integrated library reading and research resources.

Birmingham Zoo summer camp program — covers zoology, animal behavior, conservation biology, and hands-on wildlife science.