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Contact Us

Mailing Address:

Center for Archaeological Studies
Texas State University
Trinity 120
601 University Drive
San Marcos, Texas 78666






Hours of Operation

Monday through Friday
8:00am to 5:00pm

Trinity Building Map

The Trinity Building is located on Pleasant Street, on the Texas State University campus.  The image above is the location of the Center for Archaeological Studies, highlighted in red, in relation to IH-35 and San Marcos, Texas.


Take Exit 206 (Aquarena Springs Drive) and turn west onto Aquarena Springs. If you are traveling south (from Austin), turn right. If you are traveling north (from San Antonio), turn left.

Continue on Aquarena Springs until the Sessoms/University intersection. Turn right onto Sessoms Dr.

Turn left onto N. LBJ. Proceed to the entrance gate.

Turn left onto Pleasant Street.

The Trinity Building is the 3rd building on the left. CAS is located at the far end of the alley between the Trinity and Pecos Buildings.





Parking on the Texas State University campus is often at a premium. With at least 24 hour notice, CAS can make arrangements for a parking pass for visitors entering through the N. LBJ Dr. entrance. Otherwise, paid parking is available in the Pleasant Street Garage, located at the corner of N. LBJ Dr. and Pleasant Street.