Trevilians: Amethyst & Quartz Rockhounding in Louisa County, Virginia

Updated June 2026

Trevilians is a mapped rockhounding spot in Louisa County, Virginia. Reported finds include amethyst, quartz. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Louisa County
State: Virginia
Nearest road: Brickhouse Road
Postcode: 23093
Coordinates: 38.00826, -78.12666

Geology at Trevilians

This spot sits on Green Springs Pluton - Quartz diorite and granite, mapped as quartz diorite and granite that formed roughly 1000 to 300 million years ago. Granitic ground like this typically carries quartz veins and pockets, and weathered crystals tend to collect in the soils and drainages below.

Mapped unit: Green Springs Pluton - Quartz diorite and granite
Age: 1000–300 Ma (Neoproterozoic to Pennsylvanian)
Rock types: quartz diorite and granite
Elevation: 350 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 Trevilians

Conditions here are workable year-round, with typical highs from 45°F in winter to 87°F in summer.

Climate normals: NOAA 1991-2020 monthlies, LOUISA station (7 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 Trevilians

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 Trevilians.

Across the state line from Trevilians

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

Trevilians FAQ

Where is Trevilians?+

Trevilians is in Louisa County, Virginia, at 38.00826, -78.12666. Nearest road: Brickhouse Road.

What rocks and minerals can you find at Trevilians?+

Trevilians is reported to produce Amethyst, Quartz.

Is collecting allowed at Trevilians?+

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 Trevilians?+

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 Trevilians?+

Trevilians is workable year-round.

How do I get to Trevilians?+

Open the directions link to navigate to 38.00826, -78.12666 in Google Maps. The nearest road is Brickhouse Road.

More rockhounding in Virginia

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Open Trevilians on the map

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