Formerly part of the Whitworth Ranch, this 1800-acre area is about eight miles northeast of
Rocksprings in
Edwards County. The Sinkhole, discovered by Anglo settlers in 1867, is a registered National Natural Landmark. It is a vertical cavern with an opening measuring about 40 by 60 feet and a vertical drop to the main cavern of about 140 feet. Minimal development has been completed.
There are tours to the Devil's Sinkhole all year from the Rocksprings Visitor's Center. The Visitor's Center is open 7 days a week 10:00 a.m. to 5:00 p.m. The Center is on the Town Square in Rocksprings, Texas.