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Williamsburg: Silicified Coral & Quartz Rockhounding in Greenbrier County, West Virginia

Updated July 2026

Williamsburg sits in the northern Greenbrier County belt of the Hillsdale Limestone, the same formation that yields West Virginia's state gem silicified coral in neighboring Pocahontas County. Here the chalcedony-replaced Lithostrotionella coral turns up as gray, pink, and red float alongside clear and doubly terminated quartz weathered from the carbonate. Greenbrier and Pocahontas are the only two counties where this state-gem coral is documented, which makes the Williamsburg area a core locality for it. Reported finds include silicified coral, quartz. Below: coordinates, access notes, nearby spots, and trip-planning links.

Williamsburg photos

Public image records connected to this spot or its reported material.

1 photo

Karst limestone pastureland in Greenbrier County, West Virginia, the setting of the state-gem silicified coral.

Quick details

Access: Public area
County: Greenbrier County
State: West Virginia
Nearest road: White Oak Trail
Coordinates: 37.97741, -80.49629

Geology at Williamsburg

This spot sits on Greenbrier Group, mapped as limestone and shale that formed roughly 360 to 325 million years ago. Limestone like this typically forms in ancient seas, so marine fossils such as brachiopods, corals, and crinoids tend to weather out of fresh exposures.

Mapped unit: Greenbrier Group
Age: 360–325 Ma (Mississippian)
Rock types: limestone and shale
Elevation: 2,170 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 Williamsburg

Best months: March to November. Typical highs run 83°F in midsummer and 39°F in midwinter, with winter lows near 20°F.

Climate normals: NOAA 1991-2020 monthlies, LEWISBURG 3 N station (10 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.

Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.

Found at Williamsburg

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 Williamsburg.

Across the state line from Williamsburg

Williamsburg is close enough to the West Virginia border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Williamsburg FAQ

Where is Williamsburg?+

Williamsburg is in Greenbrier County, West Virginia, at 37.97741, -80.49629. Nearest road: White Oak Trail.

What rocks and minerals can you find at Williamsburg?+

Williamsburg is reported to produce Silicified Coral, Quartz.

Is collecting allowed at Williamsburg?+

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 Williamsburg?+

A rock hammer, a cold chisel, safety glasses, and newspaper or foam for wrapping finds cover most fossil ground. A trowel and a sieve help in soft exposures.

When is the best time to visit Williamsburg?+

The most comfortable months at Williamsburg are March to November.

How do I get to Williamsburg?+

Open the directions link to navigate to 37.97741, -80.49629 in Google Maps. The nearest road is White Oak Trail.

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