Classified for credit

State park at the confluence of the Platte River and Chatfield Reservoir with ranger programs — riparian ecology, migratory bird study, and Colorado geology.

Riverfront nature center on the Chattahoochee with wildlife exhibits, raptor programs, and wetland ecology trails.

NPS-managed river corridor through metro Atlanta — riparian ecology, watershed biology, and Georgia geography with developed trails and ranger programs.

AZA-accredited zoo with conservation programming — covers vertebrate biology, animal behavior, and global habitat ecology through living animal exhibits.

Alabama's highest point state park featuring Appalachian geology, diverse hardwood forest ecology, and ranger-supported nature programming.

Close-encounter cheetah program in the Cincinnati area — supports study of large-cat biology, conservation status, and African savanna ecosystems.

Regional wild animal park with naturalistic habitats and conservation programs — covers zoology, wildlife ecology, and animal adaptations.

Living-history museum near Fairbanks depicting traditional Athabascan village life — Alaska Native culture, subsistence practices, and Arctic history.

Eastern Band of Cherokee Nation cultural community — covers Cherokee history, indigenous governance, culture, and Appalachian geography.

Certified dark-sky state park with minimal light pollution — supports astronomy, light science, and observational math.

Designated dark-sky astronomy observation field in a state park — one of the best naked-eye and telescope viewing sites in the eastern U.S. for observational astronomy.

NPS canal park with towpath trails and restored lock infrastructure — covers 19th-century civil engineering, trade history, and Potomac River ecology.

184-mile historic canal with locks, aqueducts, and mule-powered towpath — covers 19th-century transportation engineering, westward commerce, and Civil War history.

C&O Canal NHP at Great Falls features a working canal lock, towpath, and visitor center — covers 19th-century civil engineering, commerce, and transportation history.

Outdoor and indoor museum documenting Chesapeake Bay skipjack and workboat heritage — covers maritime history, boat-building trades, and Bay ecology.

Living-history village in McKinney depicting 19th-century North Texas pioneer settlement, trades, and community life.

Major interior wetland and RAMSAR-designated site supporting hundreds of migratory bird species — covers wetland ecology, bird biology, and Central Flyway geography.

Front Range state park adjacent to Cheyenne Mountain with diverse trails — covers Rocky Mountain ecology, geology, and wildlife biology.

Natural history and ecology museum in Lincoln Park with interactive exhibits on Chicago-region wildlife and ecosystems — biology and environmental science curriculum.

Hands-on architecture center covering structural engineering, urban planning, and Chicago's built environment through tours and exhibits.

Chicago Botanic Garden entry point — 385-acre living plant collection supporting botany, ecology, and conservation education across all age levels.

Major Chicago history museum covering the city's founding, Great Fire, labor movement, and 20th-century urban growth.

NPS visitor center for one of the Civil War's bloodiest battles — covers Civil War military strategy, Reconstruction-era civics, and primary-source history.

Chickasaw Nation cultural center with exhibits, storytelling, and living-history programs — covers Indigenous governance, language, and Oklahoma history.