Classified for credit

Nature center in the Loess Hills with interpretive programs and trails — covers unique loess geology, prairie ecology, and Iowa natural history.

Small Montana state park on the Flathead River providing riparian ecology study, wildlife observation, and outdoor recreation in a mountain setting.

Arkansas state park focused on environmental education — covers longleaf pine ecology, water quality, and conservation biology with ranger programs.

Montana state park near Kalispell with forested trails and wildlife habitat — covers Rocky Mountain ecology, native species, and conservation.

Arlington nature center with forested trails and stream habitats — supports local ecology, watershed science, and outdoor education.

MO state park on Long Branch Lake — freshwater ecology and developed campground.

State park on Percy Priest Lake with cedar glade ecology, migratory bird habitat, and ranger-led natural history programs.

South Florida nature center with preserve trails — subtropical ecology, invasive species study, and native Florida wildlife habitat.

Prairie pothole National Wildlife Refuge in North Dakota — waterfowl biology, migratory bird ecology, and wetland conservation study.

Federal prairie pothole wildlife refuge with visitor contact station — covers migratory waterfowl biology, wetland ecology, and Great Plains geography.

Nebraska state recreation area with river access, fishing, and trails — supports freshwater ecology, outdoor skills, and Great Plains geography.

Martha's Vineyard coastal wildlife refuge — shorebird and migratory species habitat study, coastal ecology, and barrier island geography.

Historic Minneapolis parkway garden with native and ornamental plantings along Minnehaha Creek — supports botany, urban ecology, and Minnesota plant identification.

East Texas arboretum and nature center with labeled tree collections and native plant trails — covers dendrology, regional botany, and ecology through guided and self-directed outdoor study.

Jefferson County open-space preserve with nature center and interpretive trails — foothills ecology, native plant identification, and wildlife biology.

Jefferson County Open Space park in the Front Range foothills — covers montane ecology, geology, and Colorado geography with developed trails.

City park in Elgin with a small zoo and nature areas — supports introductory animal biology and ecological observation for younger students.

Audubon NJ sanctuary in Franklin Lakes with wooded trails — bird biology, native plant ecology, and New Jersey wildlife conservation.

Colorado Front Range state park with ranger programs — covers foothills ecology, wildlife identification, and physical geography.

State wildlife area on the Pacific Flyway — waterfowl biology, migratory bird ecology, and Central Valley wetland habitats.

Indiana state recreation area on a reservoir — supports freshwater ecology, Indiana native species, and outdoor PE.

Utah state park on Lost Creek Reservoir — supports freshwater ecology, Great Basin geography, and field-based natural science.

Sonoran Desert state park at the base of the Superstition Mountains — covers desert ecology, volcanic geology, and Sonoran plant adaptations.

County conservation area on a glacial lake with prairie and wetland habitats — covers Iowa ecology, migratory birds, and wetland biology.