Mariscal Mine
Abandoned since the 1940s, and isolated by its remote location in the middle of Big Bend National Park, the Mariscal Mine is the best preserved mercury mining site in the state of Texas and is a listed historic district on the National Register of Historic
Johnson's Ranch
Distinct from other airfields in the area, the Johnson Ranch airfield was established solely for its strategic location, where combat troops and aircraft could be deployed in case of a border emergency.