Beryl Mountain: Beryl & Rose Quartz Rockhounding in Sullivan County, New Hampshire

Updated June 2026

Beryl Mountain is a mapped rockhounding spot in Sullivan County, New Hampshire. Reported finds include beryl, rose quartz. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Sullivan County
State: New Hampshire
Nearest road: Beryl Mountain Road
Postcode: 03601
Coordinates: 43.18099, -72.29414

Geology at Beryl Mountain

This spot sits on Ammonoosuc Volcanics, Bimodal volcanic rocks, mapped as felsic volcanic and mafic volcanic that formed roughly 470 to 445 million years ago. Cavities and seams in volcanic rock like this are the kind of setting where quartz and amethyst crystals tend to grow.

Mapped unit: Ammonoosuc Volcanics, Bimodal volcanic rocks
Age: 470–445 Ma (Middle Ordovician to Late Ordovician)
Rock types: felsic volcanic and mafic volcanic
Elevation: 1,100 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 Beryl Mountain

Best months: April to November. Typical highs run 79°F in midsummer and 29°F in midwinter, with winter lows near 11°F.

Climate normals: NOAA 1991-2020 monthlies, WALPOLE 2S NEPP station (12 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.

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

Found at Beryl Mountain

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 Beryl Mountain.

Across the state line from Beryl Mountain

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

Beryl Mountain FAQ

Where is Beryl Mountain?+

Beryl Mountain is in Sullivan County, New Hampshire, at 43.18099, -72.29414. Nearest road: Beryl Mountain Road.

What rocks and minerals can you find at Beryl Mountain?+

Beryl Mountain is reported to produce Beryl, Rose Quartz.

Is collecting allowed at Beryl Mountain?+

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 Beryl Mountain?+

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 Beryl Mountain?+

The most comfortable months at Beryl Mountain are April to November.

How do I get to Beryl Mountain?+

Open the directions link to navigate to 43.18099, -72.29414 in Google Maps. The nearest road is Beryl Mountain Road.

More rockhounding in New Hampshire

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