Government Canyon State Natural Area

Park Alert...

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.

Park Address:
12861 Galm Rd 
San Antonio, TX 78254

The Park HQ is located at:
Latitude: 29.549316
Longitude: -98.764715

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

Learn more about park trails on the Trails Information page.

Use the trails maps anytime, anywhere by downloading a comprehensive map to your phone or GIS-compatible device.

Other Maps

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Take a First Day Hike here!

12861 Galm Rd
San Antonio, TX 78254

Latitude: 29.549316

Longitude: -98.764715

(210) 688-9055

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

Open Friday through Monday,
7 a.m. – 10 p.m. 

Closed Tuesday through Thursday.


We often reach capacity and highly recommend reservations for both camping and day use. To guarantee entry,  reserve passes online or by calling the customer service center before you visit.

On major holidays and spring break, Government Canyon may open for additional dates for day use. Visit our Holiday Schedule page for details.

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. Trails may be closed due to poor conditions or weather. 

Closure information

Check our Twitter feed, Facebook page, or call us for  capacity closures and trail reports.