Rockhounding in Llano County, Texas: 5 Spots & Minerals

Standouts in Llano County

Hand-picked spots in Llano County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.

Top pick
Llanite Roadcut on Highway 16
Public
Llano County
The roadcut on Texas Highway 16 about nine miles north of Llano slices through the only known outcrop of llanite, a 1.1-billion-year-old rhyolite porphyry flecked with blue quartz crystals found essentially nowhere else on Earth. The blue color comes from microscopic ilmenite inclusions in the quartz, set in a matrix studded with reddish microcline feldspar. It is the single publicly reachable exposure of the rock.
Llanite, Blue Quartz
Top pick
Llano River at Grenwelge Park
Public
Llano County
The Llano River cuts through the Precambrian Llano Uplift, so its gravels carry granite, gneiss, schist, garnet, and quartz, including the blue quartz that defines local llanite. Grenwelge Park gives free public access to the south bank of this navigable river in the town of Llano. Several other free city parks nearby also reach the river.
Blue Quartz, Quartz, Almandine Garnet, Granite

Spots in Llano County

Spot	Minerals	Coordinates	Access
General Area	Barite Serpentine Soapstone	30.5248, -98.7469	Public
Llanite Roadcut on Highway 16	Llanite Blue Quartz	30.7995, -98.6410	Public
Llano countyWest State Highway 71	Topaz Zircon	30.6294, -98.5274	Public
Llano River at Grenwelge Park	Blue Quartz Quartz Almandine Garnet Granite	30.7518, -98.6744	Public
Moss Ranch area near Enchanted Rock	Epidote Pink Feldspar Quartz Smoky Quartz	30.5020, -98.8021	Public

Neighboring counties in Texas

Adjacent rockhounding counties, ranked by how close their centroids sit to Llano County. A natural extension if Llano County is already on your trip plan.

Llano County FAQ

Where can I rockhound in Llano County, Texas?+

RockHoundR tracks 5 rockhounding spots in Llano County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.

What rocks and minerals are common in Llano County?+

Spots in Llano County most often produce Blue Quartz, Quartz, Almandine Garnet, Barite, Epidote. Individual spots can vary widely.

Are these Llano County rockhounding spots on public land?+

Most spots in this list are tagged public, but access can change with seasons, claims, and local closures. Always verify before driving out — links in the app open the right BLM, USFS, or county pages.

Plan a Llano County rockhounding trip

Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.

Rockhounding in Llano County, Texas

Llano County rockhounding photos

Minerals reported in Llano County