General Area: Moonstone Rockhounding in Brewster County, Texas
Updated June 2026
General Area is a mapped rockhounding spot in Brewster County, Texas. Reported finds include moonstone. Below: coordinates, access notes, nearby spots, and trip-planning links.
Map showing General Area in Brewster County, Texas
Quick details
- Access
- Public area
- County
- Brewster County
- State
- Texas
- Coordinates
- 30.50404, -103.65822
Geology at General Area
This spot sits on Alluvium, mapped as fine alluvium and coarse alluvium that formed within roughly the last 12,000 years. Loose deposits like these are float-collecting ground: erosion keeps moving durable rocks and minerals into gravel bars, cutbanks, and washes.
- Mapped unit
- Alluvium
- Age
- < 1 Ma (Holocene)
- Rock types
- fine alluvium and coarse alluvium
- Elevation
- 4,210 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 General Area
Best months: August to May. Typical highs run 92°F in midsummer and 62°F in midwinter, with winter lows near 32°F.
Climate normals: NOAA 1991-2020 monthlies, ALPINE 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:
- 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 General Area
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 General Area.
- General AreaBrewster County, Texas · 15 mi awayAgate, Geode
- W side of Glass MountainsBrewster County, Texas · 18 mi awayMoss Agate, Plume Agate, Chalcedony
- Marfa and Ft. DavisJeff Davis County, Texas · 20 mi awayAgate, Chalcedony, Jasper
- General AreaBrewster County, Texas · 24 mi awayMoss Agate, Plume Agate, Chalcedony
- N & E sides of Balmorhea LakeReeves County, Texas · 33 mi awayBalmorhea Blue Agate
- Bishop RanchPresidio County, Texas · 33 mi awayTexas Bouquet Agate
- Along US 67Presidio County, Texas · 49 mi awayTexas Bouquet Agate
- Chinati MtsPresidio County, Texas · 54 mi awayAgate, Chalcedony, Jasper
