Classified for credit

National park featuring one of North America's deepest gorges — geology, erosion, plate tectonics, and riparian ecology with ranger programs.

Accredited zoo set at 6,800 ft elevation with strong conservation programs — covers zoology, animal adaptations, and wildlife conservation biology.

Large accredited zoo with strong conservation programs covers vertebrate zoology, animal adaptation, and global ecosystems across 80+ acres.

National park featuring North America's tallest sand dunes — covers aeolian geology, hydrology, and high-desert ecology with ranger programming.

Colorado national park featuring alpine ecosystems, tundra habitats, and ranger programs covering geology, wildlife biology, and high-altitude geography.

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

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

Geothermal-fed reptile park with alligators and other reptile species — covers herpetology, thermoregulation, and the unusual geothermal ecosystem of the San Luis Valley.

Guided tours of resident wolves, foxes, and coyotes cover predator ecology, pack behavior, and wildlife conservation biology.

NPS recreation area on Blue Mesa Reservoir with boating, hiking, and geology exhibits — covers watershed ecology, glacial geology, and Western geography.

Major urban botanic garden with 24 themed gardens covering plant taxonomy, ethnobotany, and global plant geography across 24 acres.

Working farm and botanic garden outside Denver with seasonal crops, native plants, and ecology programs covering plant biology and sustainable agriculture.

Colorado state park with dramatic sandstone canyon walls supporting geology, rock-climbing, and Front Range ecology study.

Elephant exhibit at Denver Zoo — covers pachyderm biology, elephant conservation programs, and African/Asian habitat ecology.

Gateway town to Rocky Mountain National Park — serves as base for ecology, geology, and Rocky Mountain geography field study.

City-managed geological park with dramatic red sandstone formations — covers sedimentary geology, Colorado Plateau geography, and plant/wildlife ecology.

Visitor and nature center for Garden of the Gods — geology of red sandstone formations, Front Range ecology, and Ute/Ancestral Puebloan history.

Denver Botanic Gardens offers labeled plant collections across global biomes — plant biology, ecology, and horticultural science.

35-square-mile Colorado Front Range state park with diverse geology, wildlife, and ranger programs — ecology and earth science.

Giraffe conservation center at Cheyenne Mountain Zoo — covers large-mammal biology, African savanna ecology, and captive conservation programs.

Interactive kangaroo and exotic animal ranch near Denver — supports zoology, marsupial biology, and animal husbandry concepts through close-contact encounters.

14,265-ft Colorado summit accessible by road — alpine ecology, geology, atmospheric science, and elevation physiology.

Colorado state park on the Rampart Range with elk, black bear habitat, and 90+ miles of trails — supports Rocky Mountain ecology, wildlife biology, and outdoor PE.

AZA-accredited municipal zoo — covers animal biology, conservation science, and zoology across 400+ species.