Lower Rio Grande Valley
Santa Ana Wildlife Refuge (9)
Sabal Palm Sanctuary (7)
Palo Alto Battlefield (3)

Texas Gulf Coast
Port Isabel (3)
South Padre Island (8)
Padre Island (6)
Riviera Beach (1)
Goose Island and Fulton (4)
Matagorda Island (1)
Galveston (1)

East Texas
Big Thicket National Preserve (3)
Big Thicket Pines and Bog (4)
Big Thicket Forest (5)
Port Arthur and Sabine Pass (5)
Sea Rim State Park (4)