Classified for credit

Federal wildlife refuge protecting one of the rarest birds in North America — covers wetland ecology, conservation biology, and endangered-species management.

Federal refuge nature trail protecting endangered Mississippi sandhill cranes — endangered-species biology, wetland ecology, and conservation policy.

Federal refuge visitor center for the endangered Mississippi Sandhill Crane — covers wetland ecology, endangered species biology, and conservation science.

Small zoo featuring Australian and exotic animals — hands-on zoology and animal adaptation study in a rural Ozarks setting.

Free-flowing stretch of the Missouri River with ranger programs covering river ecology, geology, and Great Plains geography.

Bird research station on the Missouri River flyway — supports ornithology, migration ecology, and field-identification skills.

Missouri River environmental education center in Columbia — covers river ecology, watershed biology, and Missouri River conservation programs.

Outdoor recreation and nature education center on the Missouri River — covers riparian ecology, river geography, and field biology.

Georgia state park on Clarks Hill Lake with trails, wildlife habitats, and camping — covers Piedmont ecology, freshwater biology, and outdoor recreation science.

Milwaukee city park that includes the Domes conservatory — plant biology, tropical and desert biome ecology, and horticultural science.

Michigan state park between two lakes — covers Great Lakes freshwater ecology, wetland habitats, and outdoor field study opportunities.

Hands-on petting zoo with exotic animals — basic zoology, animal husbandry, and species identification for younger learners.

University of Missouri's campus botanic garden — plant taxonomy, horticulture, and botanical diversity across curated garden collections.

Idaho Fish and Game nature center with native fish exhibits and wildlife displays — covers Idaho freshwater biology, fish life cycles, and wildlife management.

Milwaukee County outdoor education center with trails and naturalist programming — ecology, local wildlife, and environmental science for school groups.

Historic Hawaiian garden with ancient banyan trees and native plantings — covers Hawaiian ecology, cultural history, and native plant biology.

Public botanical garden with native plant collections and woodland trails — supports plant taxonomy, ecology, and regional biodiversity study.

Georgia state park with trout hatchery and mountain stream habitat — covers freshwater ecology, fish biology, and Appalachian geography.

Mountain state park on Lake Burton with trout fishing, forest trails, and a state fish hatchery on site supporting ecology and biology study.

Large municipal park in Tulsa with zoo and nature areas — covers regional wildlife, Oklahoma ecology, and outdoor recreation.

Old-growth forest state forest in the Berkshires with trails supporting forest ecology, watershed studies, and biological diversity.

200-foot clay bluffs on Block Island offering coastal erosion geology, Atlantic Ocean geography, and migratory bird observation.

Old-growth hemlock forest and gorge trails along the Mohican River — forest ecology, geology, and watershed biology.

Ohio state forest with managed timber tracts and hiking — supports forest ecology, silviculture awareness, and physical education.