June 13, 2026 - New world screwworm has been found in parts of Texas.
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Check your pets and livestock often. If you see unusual wounds or maggots, do not move the animal. Call the Texas Animal Health Commission at (800) 550‑8242 or contact a private veterinarian. For wildlife with suspicious wounds or maggots, notify park staff or call (512) 389‑4505.
An abandoned railroad tunnel serving as a seasonal home to millions of Mexican free-tailed bats. Walk the steep nature trail, watch the spectacular sunset bat emergence from the viewing deck, and look for forest birds.
Things to do
🥾 Hiking
🐦 Birding
🔭 Stargazing
Amenities & facilities
♿ Accessible Facilities
🌞 Day Use Only
Entrance fee
$5 per adult
Hours
Trail is open year-round from sunrise to 5 p.m.
Bat Season
You must have a bat-viewing ticket to stay in the park after 5 p.m. May 1 through Oct. 31.
Hours as published by TPWD. Check the official page before a long drive.