Classified for credit

Missouri state park on Truman Reservoir — supports freshwater ecology, lake watershed science, and outdoor recreation for PE credit.

Northeast Georgia botanical garden — plant taxonomy, native Piedmont species, and horticultural science in an accessible outdoor setting.

Remote federal antelope refuge in the Oregon high desert with a staffed visitor center — covers pronghorn biology, sagebrush ecosystem ecology, and wildlife refuge management.

South Dakota state park on Big Stone Lake with prairie and shoreline habitat — supports freshwater ecology, prairie biology, and outdoor physical education.

Urban nature center with trails, wetlands, and programming — covers local ecology, wildlife biology, and outdoor physical education.

Wisconsin state park surrounding a glacial lake — covers glacial geology, freshwater ecology, and woodland habitat biology.

Outdoor prehistoric garden at Zilker Park featuring life-size dinosaur sculptures alongside native Texas plants — paleontology and botany in an open setting.

Urban nature center with wetland trails and education programs covering Iowa prairie and riparian ecology.

Western Colorado state park on Harvey Gap Reservoir — covers semi-arid ecology, reservoir hydrology, and Colorado geology in a developed outdoor setting.

Nature Conservancy riparian preserve along one of Arizona's last free-flowing rivers — covers desert hydrology, bird ecology, and Sonoran biodiversity.

Nature center on one of Arizona's few perennial rivers — covers riparian ecology, desert hydrology, and migratory bird habitats.

Donated woodland preserve and formal gardens in Spartanburg — supports plant biology, native woodland ecology, and conservation land stewardship.

NWR visitor center covering bottomland hardwood ecology, migratory bird habitat, and wetland conservation biology.

Municipal botanical garden with themed plant collections — plant taxonomy, horticulture, and native-species ecology in a hands-on outdoor setting.

Small municipal zoo with diverse animal collection — covers zoology, animal adaptations, and conservation for younger students.

Small Cincinnati botanical garden with themed plant collections — supports introductory botany, plant identification, and urban ecology study.

Pocono Mountains nature center with trails and wildlife programming — covers regional ecology, forest biology, and field observation.

County nature center with interpretive trails, ponds, and native habitat — supports Wisconsin ecology, plant identification, and outdoor observation.

Illinois River nature center with wetland exhibits — covers floodplain ecology, migratory birds, and watershed biology of the Illinois River valley.

Colorado River backwater refuge with diverse riparian and desert ecosystems — supports wildlife biology, migratory bird study, and wetland ecology.

Urban state forest in Milwaukee with interpretive trails — covers urban ecology, native woodland habitat, and environmental stewardship.

Haw River State Park corridor with exposed iron-ore geology and riparian habitat — covers Piedmont geology, ore formation, and freshwater ecology.

NC state park on the Haw River with trails and riparian habitat — covers Piedmont river ecology, watershed biology, and outdoor PE.

Honolulu nature center offering guided hikes and hands-on programs on Hawaiian native ecosystems, watershed ecology, and conservation.