Guadalupe Mountains National Park
Guadalupe Mountains National Park is a recognized dark sky location in Texas for stargazing and astronomy activities.
Type
As a U.S. national park, various camping options may be available, including frontcountry, dispersed (boondocking), and backcountry (backpacking/primitive). A permit may be/is required.
Birding
In addition to being known for its dark skies, Guadalupe Mountains is also known for its birdwatching, with many different species of birds that habitate there.
For more info, see their website. See also all dark sky places in TX.