French Creek: Gold Prospecting in Deer Lodge County, Montana

Updated June 2026

French Creek is a mapped rockhounding spot in Deer Lodge County, Montana. Reported finds include gold. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Deer Lodge County
State: Montana
Nearest road: Deep Creek Road
Coordinates: 45.94737, -113.06053

Geology at French Creek

This spot sits on Bozeman Group and related valley-fill deposits, undivided, mapped as tuffaceous sandstone and siltstone that formed roughly 56 to 3 million years ago. Gold in volcanic terrain like this is usually tied to old vein systems and the gravels that drain them, so nearby washes tend to carry the color.

Mapped unit: Bozeman Group and related valley-fill deposits, undivided
Age: 56–3 Ma (Eocene to Pliocene)
Rock types: tuffaceous sandstone and siltstone
Elevation: 6,010 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 French Creek

Best months: April to October. Typical highs run 78°F in midsummer and 30°F in midwinter, with winter lows near 7°F.

Climate normals: NOAA 1991-2020 monthlies, WISE RVR 3 WNW station (11 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 French Creek

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Gold Encyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of French Creek.

Across the state line from French Creek

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

French Creek FAQ

Where is French Creek?+

French Creek is in Deer Lodge County, Montana, at 45.94737, -113.06053. Nearest road: Deep Creek Road.

What rocks and minerals can you find at French Creek?+

French Creek is reported to produce Gold.

Is collecting allowed at French Creek?+

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 French Creek?+

A gold pan, a classifier screen, a small shovel, and a snuffer bottle cover the basics. Motorized equipment and sluices fall under separate rules in most states, so start with hand tools.

When is the best time to visit French Creek?+

The most comfortable months at French Creek are April to October.

How do I get to French Creek?+

Open the directions link to navigate to 45.94737, -113.06053 in Google Maps. The nearest road is Deep Creek Road.

More rockhounding in Montana

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Open French Creek on the map

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