San Marcos Greenbelt Alliance •  107 E. Hopkins St. Suite 121A; San Marcos, Texas 78666

The Loop


Trail markers help avoid getting lost …

…or maybe that’s your intention. Getting outside for a few hours without a care about school or work. Being outside and exercising is a great stress reliever, but we digress. 

Roadrunner trail marker sports R2
If you’ve been in Spring Lake Natural Area lately you might have noticed the metal discs attached to trees along the trail.  They were put there by the park rangers to assist in locating injured or lost trail users. The markers are color-coded and each is numbered to pinpoint the location. 

Another aid are the large posts that tell you which trail you’re currently on and often mark the intersection with another trail. These markers are set in the ground or, when it’s just too rocky, caged in a wire basket with large rocks. 

As an aside, if you see someone removing the marker or destroying it, please notify the San Marcos Park Rangers by phone at 512-735-2108 or by email at [email protected].   
Trail marker at an intersection of 3 trails
If you would like to volunteer, we do so much more than trail work. There’s always a need for many different skills. Our Outreach, Stewardship, Conservation and Fundraising committees are all in need of dedicated volunteers. 

We are currently working with the City of San Marcos in developing the Transportation Master Plan for the next 20 years (see separate article). TxDOT is planning on major overhaul of the IH-35 corridor through the city and will open opportunities to connect the East and West sides of the city for pedestrians and bikers, in addition to vehicles.

We’d love to hear from you! Contact us at

Map used by park rangers and emergency services  (CoSM GIS)

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