Full Title: Kirk Bryan Field Trip & The Hydrology of the Edwards Aquifer and the Geoarchaeology of Spring Lake, South-Central Texas (full day)
Endorsed by: GSA’s Geoarchaeology, Environmental and Engineering Geology, Soils and Soil Processes, History, Philosophy, and Geoheritage, Hydrogeology, Limnogeology Divisions, Kansas Geological Survey
Led by: Samantha Marie Krause, Rolfe D. Mandel
Date: Sat. 18 Oct. 2025
Time: 7:30 a.m.-6 p.m.
CEUs: 0.8
This trip will include the Kirk Bryan Field Trip in the morning and conclude with the Geoarchaeology Field Trip in the afternoon. The San Marcos Springs in Hay County, Texas are part of a significant landscape for geological, hydrological, and archaeological interests. The artesian springs are among the largest in Texas and provide an exceptional opportunity for GSA attendees to study aquifer dynamics, karst geomorphology, and human history. This field trip proposes to lead attendees on a glass bottom boat tour, hiking tour of the fault zones of the escarpment, and tour of the cultural materials recovered over the years at the archaeological site. This trip is partially funded by the Geoarchaeology Division and the Kansas Geological Survey. The cost includes transportation (bus), boat fees, lunch, snacks, and water.
This field trip starts and ends at the Convention Center in San Antonio. However, for those on the Kirk Bryan Field Trip who also registered for the Geoarchaeology Division’s trip, "The Geoarchaeology of Spring Lake, San Marcos Texas," you will depart after lunch (1 p.m.) from the Richard Beene site and travel to San Marcos. A bus will transport us directly to the Land Heritage Institute’s facility at the Richard Beene archaeological site. Except for walking about 150 meters on flat ground to view an outcrop along the Medina River, there will be no long walks. Wear comfortable walking shoes and expect the temperature to be around 80-82° F. Refreshments will be provided during the tour, and bathrooms are available in the Land Heritage Institute’s facility at the site.
By purchasing this item, you are buying a seat on an in-person geological field trip.
Please review these Field Safety Documents. You will be contacted to provide your consent to these forms after purchasing a field trip.
Learn more about this and other GSA Connects 2025 events.
For additional information, please contact Rebecca Taormina, rtaormina@geosociety.org, GSA Field Trip and Short Program Coordinator.
Product Code: FT25CN414
Product Category: FTRIP