Fossils from the Glen Rose Formation

are displayed within the Nature Center. JWNA strives to educate and inform everyone interested in the natural world. The Nature Center has displays which include fossils of the Glen Rose Formation.They are of marine plants and animals that all lived in a shallow sea that covered this part of Texas during the
Lower Cretaceous Period: approximately 110 million years ago.




Groundwater Flow - Karst Aquifer Simulator

The simulator demonstrates groundwater flow in both unconfined and confined sand and gravel aquifers overlying cavernous limestone and fractured-bedrock aquifers. This simulator is particularly useful in visualizing how the groundwater flows and and interacts in our area which contains caves, sinkholes, fractured non-porous bedrock. It is one of several models that are available for viewing at the Nature Center.

Displays and Posters

...depicting various aspects of this natural area are displayed throughout the nature center.




Lectures and Tours

You are invited to join the Hays County Master Naturalists for a free tour beginning at 10:30 A.M. each Saturday beginning Sept. 10,2016. Tours are approximately 1 1/2 hours in duration. Enter through the main gate at 1699 Mt. Sharp Road, Wimberley; vehicles can be parked at the Visitor Center. Reservations are not necessary. Please bring your own water, sun screen, sturdy walking shoes and proper attire depending on the weather. Tours will be held rain or shine but call ahead at (512) 847-2140 if there is a chance of any severe or threatening weather conditions which might cause a cancellation. For 5 or more in a group, please call in advance to make arrangements for a private tour. Shown is the 'class room' and the Watershed Education Kiosk.


Discover all that JWNA has to offer

Jacob's Well Natural Area is a Day Use Facility and open year long. The swimming season runs May 1st through October 1st.
Reservations are required.
Swimming is closed until May 1st, 2017

JWNA Home

the first Hays County - owned preserve includes 81.5 acres surrounding the Jacob's Well artesian spring. This ecological resource is the most significant and...
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Jacob's Well

The Artesian spring, is a favorite swimming spot in Wimberley and is also the head waters to Cypress Creek. The water is supplied to the spring by the Trinity...
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Trails for all to enjoy

Access to the spring requires a hike of approximately 1900' (580m) from the parking area.. Sturdy foot wear is advised, strollers and coolers are not advised...
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JWNA News and Information

Updated timely news, hours of operation, guidelines, regulations, maps, contact information and what to expect when visiting...
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Things to Do in the area

Complementary information; parks, rivers, facilities, vendors and other activities located within the general area.
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The Fatal Allure of Jacob's Well

Louie Bond tells of the history and the mystery of this natural wonder.On the surface, the scene is timeless.
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