Streeter: Amazonite & Feldspar Rockhounding in Mason County, Texas

Updated June 2026

Streeter is a mapped rockhounding spot in Mason County, Texas. Reported finds include amazonite, feldspar, smoky quartz, blue topaz, clear topaz, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Mason County
State: Texas
Nearest road: US Highway 377
Postcode: 76856
Coordinates: 30.76558, -99.37959

Geology at Streeter

This spot sits on Hickory Sandstone Member, mapped as sandstone that formed roughly 510 to 495 million years ago. Sedimentary rock like this erodes unevenly, so the most productive collecting is typically along fresh cuts, badland slopes, and active drainages.

Mapped unit: Hickory Sandstone Member
Age: 510–495 Ma (Middle Cambrian)
Rock types: sandstone
Elevation: 1,670 ft

Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.

Best time to visit Streeter

Best months: September to May. Typical highs run 95°F in midsummer and 61°F in midwinter, with winter lows near 33°F. Summer heat here is intense, so carry more water than you think you need and work the early morning.

Climate normals: NOAA 1991-2020 monthlies, MASON station (9 mi away), adjusted for elevation.

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.

Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

State guidance last verified: April 1, 2026

Texas Parks and Wildlife Department
Bureau of Economic Geology — Texas geology
Big Bend National Park — Rules
Community submissions reviewed against published agency rules

Found at Streeter

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Nearby rockhounding spots

Other rockhounding spots within driving distance of Streeter.

Streeter FAQ

Where is Streeter?+

Streeter is in Mason County, Texas, at 30.76558, -99.37959. Nearest road: US Highway 377.

What rocks and minerals can you find at Streeter?+

Streeter is reported to produce Amazonite, Feldspar, Smoky Quartz, Blue Topaz, Clear Topaz, Tourmaline.

Is collecting allowed at Streeter?+

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.

What tools should I bring to Streeter?+

A rock hammer, a small pry bar, gloves, and safety glasses cover most crystal ground. A screen helps in loose pocket soil, and newspaper protects points on the way out.

When is the best time to visit Streeter?+

The most comfortable months at Streeter are September to May. Summer heat here is intense, so carry more water than you think you need and work the early morning.

How do I get to Streeter?+

Open the directions link to navigate to 30.76558, -99.37959 in Google Maps. The nearest road is US Highway 377.

More rockhounding in Texas

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Open Streeter on the map

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