Classified for credit

Remote Chihuahuan Desert national park with ranger programs covering geology, ecology, desert biology, and dark-sky astronomy.

Vast national park straddling the Chihuahuan Desert — covers desert ecology, geology, river systems, and Chihuahuan biodiversity with ranger programs.

AZA-accredited zoo with strong conservation programs — covers zoology, animal behavior, and wildlife biology across diverse biomes.

Drive-through wildlife center with native and exotic species conservation programs — covers zoology, ecology, and endangered-species biology.

Remote national park exposing ancient Permian reef geology and Chihuahuan Desert ecology — covers stratigraphy, desert biology, and physical geography.

"Grand Canyon of Texas" — 800-ft canyon, badlands geology, and high-plains ecology in a developed state park.

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

NPS preserve protecting rare convergence of four North American ecosystems — field study in biodiversity, plant communities, and wetland ecology.

66-acre botanical garden on White Rock Lake — plant biology, ecology, and seasonal horticulture with labeled collections.

Longest barrier island in the world with ranger programs — coastal ecology, sea turtle conservation, barrier-island geology, and Gulf Coast geography.

Federally protected Wild & Scenic River corridor in Big Bend — riparian ecology, desert geology, and river geography in a remote backcountry setting.

Working farm and petting zoo covering plant agriculture, animal husbandry, food systems, and seasonal crop cycles in a hands-on outdoor setting.

Private big-cat sanctuary offering tours focused on exotic-animal conservation biology and captive-wildlife management.

NPS recreation area at the confluence of the Rio Grande and Pecos River — covers desert ecology, riparian biology, geology, and US-Mexico border geography.

Wildlife park in Alvin, TX, offering close observation of exotic and native animals to support zoology and conservation curriculum.

Wildlife adventure park in southeast Texas housing American alligators and native reptiles — covers herpetology and wetland ecology.

Houston Audubon facility with bird sanctuaries and conservation programming — ornithology, bird identification, and habitat ecology.

NPS recreation area on a reservoir in the Texas Panhandle — covers geology, high-plains ecology, and water resource geography.

Urban nature center on the Wichita River with trails and exhibits — covers local ecology, riparian habitats, and native Texas wildlife.