Pipestone: Amethyst & Quartz Rockhounding in Jefferson County, Montana

Updated June 2026

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

Quick details

Access: Public area
County: Jefferson County
State: Montana
Nearest road: Camp Caroline Road
Coordinates: 45.95546, -112.38687

Geology at Pipestone

This spot sits on Monzogranite in the Anaconda Range and the Boulder batholith, mapped as monzogranite that formed roughly 145 to 66 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: Monzogranite in the Anaconda Range and the Boulder batholith
Age: 145–66 Ma (Cretaceous)
Rock types: monzogranite
Elevation: 7,020 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 Pipestone

Best months: April to October. Typical highs run 76°F in midsummer and 27°F in midwinter, with winter lows near 2°F. At about 7,020 ft, snow can block access from late fall well into spring, so check conditions outside of summer.

Climate normals: NOAA 1991-2020 monthlies, BUTTE BERT MOONEY AP station (6 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: April 1, 2026

BLM Montana — Recreational mineral collecting
Montana Bureau of Mines and Geology
Gem Mountain Sapphire Mine (fee-dig operator)
Community submissions reviewed against published agency rules

Found at Pipestone

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 Pipestone.

Pipestone FAQ

Where is Pipestone?+

Pipestone is in Jefferson County, Montana, at 45.95546, -112.38687. Nearest road: Camp Caroline Road.

What rocks and minerals can you find at Pipestone?+

Pipestone is reported to produce Amethyst, Quartz.

Is collecting allowed at Pipestone?+

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 Pipestone?+

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 Pipestone?+

The most comfortable months at Pipestone are April to October. At about 7,020 ft, snow can block access from late fall well into spring, so check conditions outside of summer.

How do I get to Pipestone?+

Open the directions link to navigate to 45.95546, -112.38687 in Google Maps. The nearest road is Camp Caroline Road.

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