Contact riverrangers@sanmarcosriver.org to register. Monthly sessions, 4 hours for state certification ... Continue Reading »

The San Marcos River Rangers are volunteers trained as citizen scientists to conduct scientific data collectionRead More…
To preserve and protect the flow, natural beauty and purity of the San Marcos River
Receive monthly updates on the latest river news, upcoming volunteer opportunities and events.
The San Marcos River Rangers are volunteers trained as citizen scientists to conduct scientific data collectionRead More…
SMRF has long worked to improve local ordinances in order to protect the recharge zone of the Edwards AquiferRead More…
The River Foundation supports clean-ups all year long including the mammoth GreatRead More…
There are many ways you can help support the River Foundation and their efforts to protect and preserve the river[Read More…]
Contact riverrangers@sanmarcosriver.org to register. Monthly sessions, 4 hours for state certification ... Continue Reading »
Help remove invasive plants by kayak from Spring Lake. Pre-registration is required with only 14 spots per month ... Continue Reading »
Thomas Taggart is SMRF's Friend of the River for 2021 because he truly made a difference for the river in many ways- but primarily in his work as the Director of Operations for our city of the Water, ... Continue Reading »
Two heavy streams of rainfall drop down into the aquifer's recharge zone at SMRF's ranch. This is one of several caves and recharge features that were cleaned out by volunteers to re-allow flow into ... Continue Reading »
The San Marcos River Project A short, must-watch segment about the many reasons why this river is unique and deserves extra protection. Shout-outs to Dianne Wassenich, Dr. Ben Hutchins, and ... Continue Reading »
604 West Hopkins Street,
San Marcos, Texas 78666
210-860-4575
P. O. Box 1393,
San Marcos TX 78667-1393
 
San Marcos River Foundation would like to thank Yakona for the use of their images.