San Marcos Aquatic Resources Center
500 East McCarty Ln.
San Marcos, TX 78666
Fish Hatchery: Science, Walk
San Marcos National Fish Hatchery and Technology Center began as the first warmwater hatchery west of the Mississippi River. The original San Marcos hatchery, built in 1897, is now operated by Southwest Texas State University. The current facility dates to 1975. The San Marcos National Fish Hatchery and Technology Center works to find better ways to propagate aquatic organisms. We welcome anyone interested to come to the Center for a tour of our facility. Visitor Hours: Monday through Friday – 7:30 a.m. to 4:00 p.m.. Closed Saturdays, Sundays, and Federal Holidays.