Classified for credit

Accredited zoo and botanical garden with strong conservation programming — covers animal biology, plant ecology, and wildlife conservation.

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

World-renowned zoo with 3,500+ animals and strong conservation programming — covers zoology, ecology, animal behavior, and global biodiversity.

National park featuring the world's largest trees — old-growth ecology, dendrology, Sierra Nevada geology, and conservation biology.

Sequoia and Kings Canyon parks offer ranger programs on old-growth ecology, geology, and giant sequoia biology.

National park along the Blue Ridge with ranger programs, wildlife habitat, and Appalachian Trail access — covers ecology, geology, and conservation.

105-mile scenic parkway through Shenandoah National Park — covers Blue Ridge geology, Appalachian ecology, and geography with ranger programs available.

National lakeshore featuring glacially formed dunes, freshwater ecology, and Great Lakes geography with ranger-led interpretive programs.

National Lakeshore on Lake Michigan with massive sand dunes, forest ecosystems, and ranger programs covering geology, ecology, and Great Lakes geography.

Smithsonian's free national zoo with 1,800+ animals and active conservation research — supports zoology, ecology, and wildlife biology.

High Desert Museum near Bend, OR combines live wildlife, Native American cultural history, and desert ecology exhibits for interdisciplinary natural and cultural study.

AZA-accredited zoo with over 750 species and conservation programs — applied zoology, ecology, and wildlife biology across diverse animal exhibits.

National park preserving North Dakota badlands and Theodore Roosevelt's ranches — covers geology, prairie ecology, and conservation history.

National park preserving North Dakota badlands with bison herds — covers prairie ecology, geology, and Theodore Roosevelt's conservation legacy.

Caribbean national park with coral reef snorkeling, hiking trails, and ranger programs covering tropical ecology, marine biology, and geology.

Spectacular gorge state park with 19 waterfalls and layered geology — covers erosion, stratigraphy, hydrology, and physical geography.

National park featuring 275 sq miles of white gypsum dune field — covers sedimentary geology, desert ecology, and mineralogy in a rare landscape.

275 square miles of gypsum sand dunes — covers mineralogy, desert ecology, aeolian geology, and unique plant and animal adaptations.

Largest US national park — covers glaciology, volcanology, subarctic ecology, and wilderness geography across 13 million acres.

UNESCO World Heritage Site featuring active geothermal features, diverse megafauna, and multiple ecosystems — geology, ecology, and conservation biology in one landscape.

World's largest active geothermal area in a national park — covers geology, hydrothermal chemistry, wildlife biology, and ecosystem science.

Yellowstone National Park offers geothermal geology, wildlife biology, and ecology across multiple biomes with ranger-led education programs.

UNESCO World Heritage national park covering glaciology, granite geology, giant sequoia ecology, and Sierra Nevada watershed biology.

UNESCO World Heritage Site and national park — covers geology, ecology, watershed science, and wildlife biology across diverse Sierra Nevada ecosystems.