Classified for credit

County-run nature center with live animals, trails, and environmental education programs — covers local wildlife biology and forest ecology.

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

Discovery center on Little Seneca Lake offering ranger programs on local ecology, wetlands, and watershed science.

Regional park with lake, wetlands, and trails — supports ecology, wildlife observation, and outdoor PE alongside ranger programming.

Chesapeake Bay estuary NWR with trails and observation areas — covers wetland ecology, migratory bird biology, and conservation of tidal marshes.

National Wildlife Refuge visitor center on the Chesapeake watershed — covers wetland ecology, migratory bird biology, and Chesapeake Bay conservation.

Brookside Gardens conservatories with tropical and warm-temperate plant collections — covers plant adaptation, horticulture, and ecosystem diversity.

County nature center with live animal exhibits and woodland trails — supports local ecology, wildlife biology, and environmental science.

Large Maryland-National Capital regional park with nature center, trails, and a small zoo — covers suburban woodland ecology and wildlife observation.

Baltimore nature center with wildlife rehabilitation and live animal exhibits — covers local ecology, animal biology, and conservation.

Natural waterfall along a creek trail in the Patapsco Valley area — fluvial geomorphology, stream ecology, and Maryland natural history.

Maryland stream-corridor park with nature center programming — stream macroinvertebrate biology, Piedmont ecology, and watershed science.

Private wildlife preserve with native and exotic animals — applied zoology, wildlife conservation, and animal behavior observation.

Maryland state forest with managed pine and mixed hardwood stands — supports forestry, ecology, and biodiversity field study with self-guided trails.

Maryland state park on the Port Tobacco River estuary — covers Chesapeake watershed ecology, tidal biology, and colonial-era settlement geography.

Chesapeake Bay wetlands education center with trails and wildlife observation — covers estuarine ecology, migratory birds, and Chesapeake Bay conservation.

County nature center with trails, live animals, and environmental education programs — covers local ecology, native species, and watershed biology.

Baltimore-area nature park with stream valleys, woodland trails, and environmental education programs covering Mid-Atlantic ecology.

City-operated nature center with live animals, exhibits, and creek trails — covers local wildlife biology, watershed ecology, and environmental science.

Maryland state park featuring a 78-foot cascading waterfall — geomorphology, freshwater ecology, forest biology, and trail-based physical education.

Baltimore city arboretum with labeled tree collections and nature trails — supports dendrology, plant biology, and urban ecology curriculum.

State park visitor/discovery center at Deep Creek Lake covering Appalachian ecology, freshwater biology, and Maryland highland geography.

Maryland's largest freshwater lake state park in Garrett County — covers freshwater ecology, glacial lake geology, and Appalachian mountain biology.

Waterfront nature discovery center on the Bush River — covers local wetland ecology, watershed science, and Chesapeake Bay biology.