Big Bend Ranch State Park is Fourth Texas State Park to Receive International Dark Sky Park Designation

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Together with Big Bend National Park, Big Bend Ranch State Park forms one of the largest contiguous areas under dark-skies protection in the United States.

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TERLINGUA – Big Bend Ranch State Park (BBRSP) is the latest Texas State Park to be designated as an International Dark Sky Park by the International Dark-Sky Association (IDA). Joining neighboring Big Bend National Park, they form one of the largest contiguous areas under dark-skies protection in the United States.

“Big Bend Ranch State Park’s achievement in becoming an IDA International Dark Sky Park is an important step forward in the conservation of some of the darkest night skies remaining in the lower 48 states,” said IDA Executive Director J. Scott Feierabend. “Along with neighboring Big Bend National Park, we have now secured the protection of natural nighttime darkness over an area larger than the U.S. state of Rhode Island.”

Located in the remote and rugged Trans-Pecos region of far West Texas, BBRSP is bounded by the Rio Grande with the steep mesas of Mexico to the south and vast rural ranchland to the north. At 315,000 acres, BBRSP is the largest park in the Texas State Park system. The park lies within the Chihuahuan Desert, which is home to a diversity of plants and animals, and has a deep human history.

“Big Bend Ranch SP is known for its remote location and the feeling of being in the wilderness. Preserving the dark sky is key to that experience and something all visitors treasure,” said Mark Lockwood, Region 1 Director with the Texas Parks and Wildlife Department (TPWD).

BBRSP joins Copper Breaks State Park, South Llano River State Park and Enchanted Rock State Park in holding the prestigious IDA designation.

As part of its certification effort, BBRSP inventoried and assessed the condition of all outdoor lighting in the park and created an effective management plan for current and future lighting installations. The park also developed a program to educate park visitors and area residents about the importance of dark night skies and the benefits of quality outdoor lighting. Additionally, BBRSP has invested in its staff by offering professional development opportunities and materials related to dark skies.

As part of its dark-sky initiative, BBRSP will launch a Dark Sky Steward program to involve the public in helping monitor the condition of the park’s night skies over time. The program enlists volunteers with an interest or expertise in astronomy and astrophotography to gather observations of the night sky from various locations in the park. The observations and images generated by our volunteers will be used to track the quality of the night sky, as well as for promotional and educational purposes in interpretive and outreach programs. The park will host an event to celebrate our designation in the near future.

Contact Amber Harrison at the Barton Warnock Visitor Center at 432-424-3327 for more information on the Dark Sky Steward program and visit the Dark Skies Program page on the TPWD website to learn more about the initiative.

The IDA is a 501(c)(3) nonprofit organization based in Tucson, Arizona, which advocates for the protection of the nighttime environment and dark night skies. It does so by educating policymakers and the public about night sky conservation and through the promotion of environmentally responsible outdoor lighting. The IDA established the International Dark Sky Places conservation program in 2001 to recognize excellent stewardship of the night sky. Designations are based on stringent outdoor lighting standards and innovative community outreach. Currently, 16 Communities, 57 Parks, 11 Reserves, three Sanctuaries and four Dark Sky Friendly Developments of Distinction are recognized with International Dark Sky Places designations.

More information about the IDA, its mission and work may be found at Also visit find out more about the International Dark Sky Places conservation program.