Classified for credit

Iowa state recreation area with trails, wetlands, and a reservoir — supports ecology, freshwater biology, and outdoor physical education.

Ozarks stream corridor state park in Missouri — covers Ozark watershed ecology, stream biology, and native Ozark flora and fauna.

Wildlife adventure attraction near Bryce Canyon featuring taxidermy and live-animal exhibits — covers Utah wildlife species and basic zoology concepts.

Private nature preserve in Appleton with forested trails, wetlands, and environmental education programs — ecology, conservation, and field biology.

Gulf Coast Mississippi state park with beach access and campground — supports coastal geography, shoreline ecology, and outdoor PE.

Ohio state park with lake, wetlands, and trails — supports freshwater ecology, native species identification, and outdoor PE curriculum.

Alabama state park featuring sandstone geology, forested gorge, and a pocket of cool-air microclimate — covers regional ecology, geology, and biodiversity.

Reservoir state park on one of Ohio's oldest artificial lakes — freshwater ecology, glacial geology, and aquatic habitat study along the Licking River watershed.

Kentucky state resort park on a lake in the Daniel Boone National Forest — covers Appalachian ecology, watershed geography, and outdoor recreation.

Wisconsin state park along the Yellow River — supports freshwater ecology, forest biology, wetland habitats, and outdoor PE through hiking and paddling.

Wisconsin wildlife area encompassing wetlands and upland habitat — supports waterfowl ecology, migratory bird study, and central-sands geography.

Arizona state park on the Colorado River with desert riparian habitat — supports ecology, desert biology, and outdoor physical education.

Federal wildlife refuge in southern Arizona — Sonoran Desert ecology, migratory bird biology, and conservation land management.

NWR visitor contact station on the Arizona–Mexico border — covers Sonoran Desert ecology, grassland restoration, and migratory bird biology.

State park at the Buffalo Bill Reservoir in the Absaroka Range — Rocky Mountain geology, water storage engineering, and Wyoming geography.

State park along the North Platte River near Buffalo Bill's Scout's Rest Ranch — covers Nebraska Sandhills ecology and Plains frontier history.

Federal National Wildlife Refuge on the Southern High Plains — covers migratory bird biology, wetland ecology, and Great Plains conservation.

Prairie and riparian state park along the Buffalo River — field study of Red River Valley tallgrass prairie ecology, native plants, and bird species.

Illinois River bluff state park with earthwork mounds — combines riparian ecology, native prairie biology, and pre-Columbian Hopewell mound observation.

Natural springs area within Chickasaw NRA — supports study of karst hydrology, native grassland ecology, and Oklahoma's cross-timbers habitat.

New Jersey farm-based nature center with wetlands and wildlife habitat — supports local ecology, bird identification, and agricultural land stewardship.

Local nature sanctuary and arboretum with labeled tree collections and creek habitat — dendrology and riparian ecology.

Oregon coastal state park with beach, estuary, and the historic Coquille River Lighthouse — coastal ecology, tidal biology, and geography.

Public garden in Hendersonville, NC — display gardens, native plants, and horticultural therapy programs.