Mathis — Rockhounding in San Patricio County, Texas

Mathis is a mapped rockhounding spot in San Patricio County, Texas. Reported finds include moss agate. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: San Patricio County
State: Texas
Nearest road: South State Highway 359
Postcode: 78368
Coordinates: 28.03829, -97.85979

Land & collecting status

Generally open to casual rockhounding

Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.

Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.

Found at Mathis

Each chip links to all spots in the U.S. that produce that material.

Moss Agate

Nearby rockhounding spots

Other rockhounding spots within driving distance of Mathis.

Mathis FAQ

Where is Mathis?+

Mathis is in San Patricio County, Texas, at 28.03829, -97.85979. Nearest road: South State Highway 359.

What rocks and minerals can you find at Mathis?+

Mathis is reported to produce Moss Agate.

Is collecting allowed at Mathis?+

Generally open to casual rockhounding. Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig. Always confirm current rules with the managing agency before a trip.

How do I get to Mathis?+

Open the directions link to navigate to 28.03829, -97.85979 in Google Maps. The nearest road is South State Highway 359.

More rockhounding in Texas

See all 85 Texas spots →

Open Mathis on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.