One of the oldest National Wildlife Refuges, St. Marks NWR was established in 1931 as a habitat for wintering birds.

St. Marks NWR is over 80,000 acres and is located in the northwest Florida panhandle, along the Gulf Coast. Its habitats span from coastal marshes to islands to estuaries.

Bon Secour, or "safe harbor" in French, National Wildlife Refuge protects some of the last coastal barrier habitat of southern Alabama.

In 1980, the refuge was established along the Fort Morgan Peninsula to protect neotropical migratory songbirds. The beach dunes and scrub habitats also provide a habitat for the endangered Alabama beach mouse.

Trinity River National Wildlife Refuge is a 30,000-acre refuge located in southeast Texas. The refuge began in 1994 with the purchase of 4,400 acres to protect what was left of the bottomland hardwood forest along the river.

Located in southwestern Oklahoma, Wichita Mountains Wildlife Refuge was established in 1901 to protect wildlife in danger of extinction and reintroduce species that had been eliminated. The 59,020-acre refuge is managed by the US Fish and Wildlife Service and is home to bison, elk, and wild turkey.

The refuge has a mixed-grass prairie that remained intact due to rocks that prevented plowing. Large native grazing animals such as bison and Texas longhorn cattle call the habitat home.

Monte Vista National Wildlife Refuge is located in south-central Colorado in the San Luis Valley. The valley is a high mountain basin, sitting at 7,800 feet. It extends over 100 miles north to south and over 50 miles east to west.

The valley is surrounded by the Sangre de Christo, San Juan, and Saguache mountain ranges. Sangre de Christo, meaning Blood of Christ, got its name from Spanish explorers who observed the red glow of the mountains at sunset.