Broad area around Bedias: Tektites & Black Diamond Rockhounding in Grimes County, Texas

Updated June 2026

Broad area around Bedias is a mapped rockhounding spot in Grimes County, Texas. Reported finds include tektites, black diamond, fire pearl. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Grimes County
State: Texas
Nearest road: Magnolia Street
Postcode: 77831
Coordinates: 30.77442, -95.95013

Geology at Broad area around Bedias

This spot sits on Wellborn Formation, mapped as sandstone that formed roughly 38 to 34 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: Wellborn Formation
Age: 38–34 Ma (Late Eocene)
Rock types: sandstone
Elevation: 340 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 Broad area around Bedias

Best months: October to May. Typical highs run 94°F in midsummer and 61°F in midwinter, with winter lows near 36°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, MADISONVILLE station (12 mi away).

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 Broad area around Bedias

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 Broad area around Bedias.

Broad area around Bedias FAQ

Where is Broad area around Bedias?+

Broad area around Bedias is in Grimes County, Texas, at 30.77442, -95.95013. Nearest road: Magnolia Street.

What rocks and minerals can you find at Broad area around Bedias?+

Broad area around Bedias is reported to produce Tektites, Black Diamond, Fire Pearl.

Is collecting allowed at Broad area around Bedias?+

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 Broad area around Bedias?+

A rock hammer, sturdy gloves, safety glasses, and a collecting bag cover the basics here. Add a spray bottle: wet rock shows color and pattern that dry rock hides.

When is the best time to visit Broad area around Bedias?+

The most comfortable months at Broad area around Bedias are October 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 Broad area around Bedias?+

Open the directions link to navigate to 30.77442, -95.95013 in Google Maps. The nearest road is Magnolia Street.

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