Government Canyon State Natural Area Map


From the intersection of Loop 1604 and Culebra Road (also known as FM 471 - back road to Castroville), travel west 3.5 miles to Galm Road. Turn north (right) on Galm and travel 1.6 miles; gate with signs on the left.

The Park HQ is located at:
(degrees, minutes, seconds) N:  29° 33' 08.31"
Longitude (degrees, minutes, seconds) W:  98° 44' 38.25"

Current conditions can vary from day to day. For more details, contact the park.

Other Maps

12861 Galm Rd
San Antonio, TX 78254

Latitude: 29.549316

Longitude: -98.764715

(210) 688-9055

Make reservations online

Reserve by phone: (512) 389-8900

Entrance Fees
  • Adult: $6 Daily
  • Child 12 Years and Under: Free

Open Friday through Monday; Closed Tuesday through Thursday


Gate is open from 7 a.m. – 10 p.m. 


On major holidays, Government Canyon will open for additional dates for day use visitation. Visit our Events page for specific holiday openings.


Trails may be closed due to poor conditions or weather. Check our Twitter or Facebook for the latest trail reports, or contact the park.


The Protected Habitat Area trails are open annually September through February. All other trails are open all year. All pets and domesticated animals are restricted to the front country trails.