Miner: Agate & Chalcedony Rockhounding in Park County, Montana
- Minerals reported
- 4
- Elevation
- 5,310 ft
- Best months
- March to October
Miner is a mapped rockhounding spot in Park County, Montana. Reported finds include agate, chalcedony, jasper, petrified wood. Below: coordinates, access notes, nearby spots, and trip-planning links.
Plan your visit
Generally open to casual rockhounding
- County
- Park County
- State
- Montana
- Nearest road
- Tom Miner Creek Road
- Coordinates
- 45.19184, -110.92712
Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.
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.
Best time to visit Miner
Comfortable months (45 to 90°F highs)
Best months: March to October. Typical highs run 87°F in midsummer and 35°F in midwinter, with winter lows near 17°F.
Climate normals: NOAA 1991-2020 monthlies, GARDINER station (16 mi away).
Geology at Miner
This spot sits on Landslide deposits, mapped as sand and gravel that formed within roughly the last 3 million years. Petrified wood typically travels as tough float, and worked gravels like these are exactly where weathered pieces tend to collect.
- Mapped unit
- Landslide deposits
- Age
- 3 Ma to present (Quaternary)
- Rock types
- sand and gravel
- Elevation
- 5,310 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.
Today's weather
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The app shows live weather, recent rain, and a daily rockhounding score for Miner.
Get the appSources & 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:
- 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 Miner
Each name 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 Miner.
- CarbellaPark County, Montana · 2 mi awayAgate, Jasper, Petrified Wood
- Mount BlackmoreGallatin County, Montana · 18 mi awayAgate, Chalcedony, Hyalite Opal
- GardinerPark County, Montana · 19 mi awayArsenopyrite, Gold
- JardinePark County, Montana · 19 mi awayArsenic, Gold, Tungsten
- SalesvilleGallatin County, Montana · 31 mi awayEmery, Corundum
- Finnegan RidgeMadison County, Montana · 31 mi awayChert, Jasper
- Bakers HoleGallatin County, Montana · 34 mi awayAgate
- Yellowstone RiverPark County, Montana · 35 mi awayAgate, Montana Agate, Moss Agate
Across the state line from Miner
Miner 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.
- Crystal ButteFremont County, Idaho · 73 mi awayAndesine
Miner FAQ
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More rockhounding in Montana
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