The Devvil's Sinkhole at Rocksprings Texas
Whether you are staying at the Farm Country RV Park
Tours to see the Devil's Sinkhole State Natural Area originate at the Rocksprings Visitor's Center. The Visitor's Center is located on the Courthouse Square at Sweeten and Main in Rocksprings. The Visitor's Center is open 10:00 a.m. to 4:00 p.m. 7 days a week and reopens for the evening tours about 45 minutes before the departure of the tour bus.
The Devil's Sinkhole State Natural Area is comprised of 1,850 acres of rugged ranchland. The collapsed cavern is its main attraction. It was designated a National Natural Landmark by the National Park Service in 1971.
The Devil's Sinkhole is the largest single chamber cavern in the state of Texas and the third deepest in the State measuring over 350 feet deep. Thousands of years ago the dome of this cavern collapsed creating a large 75 foot vertical shaft to the surface. At the surface, a hard layer of limestone restricts the opening to about 50 feet. It is through this relatively small opening that millions of bats must exit at dusk. The rapidly counterclockwise rotating bats look like a tornado.
The Mexican Free-tailed Bat
There are about 3 million bats that migrate to the Devil's Sinkhole each summer. They come from all across Mexico and Central America. Many of those migrants are pregnant females that come north to have their pups in Texas and other areas of the south-central United States. The Mexican Free-Tail bat has long narrow wings designed for flying very great distances. They emerge each evening from the Devil's Sinkhole and fly to the agricultural areas to the east and southeast where they feast on insects, mostly moths that are agricultural pests.
Evening Bat Flight Tours
During the "bat season", mid April through mid October, depending on the return of the bats, tours are offered Wednesday through Sunday evenings. The forty passenger tour bus leaves the Rocksprings Visitor's Center between 5:30 p.m. and 7:00 p.m. Time of departure will depend on the time the bats emerge. This changes as the summer progresses. There is a limit to the size of the tour group, so reservations are necessary. You will be given the departure time when resevations are made. Tours return to the Visitor's Center between 8:30 p.m and 9:45 p.m.
For complete information on tour times and bat availability contact:
Devil's Sinkhole Society Inc.
Flight of the Bats
This Old Campsite