Fromberg — Rockhounding in Carbon County, Montana
Fromberg is a mapped rockhounding spot in Carbon County, Montana. Reported finds include coal, pyrite. Below: coordinates, access notes, nearby spots, and trip-planning links.
Map showing Fromberg in Carbon County, Montana
Quick details
- Access
- Public area
- County
- Carbon County
- State
- Montana
- Coordinates
- 45.39299, -108.93163
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:
- 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 Fromberg
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 Fromberg.
- Bear CanyonCarbon County, Montana · 29 mi awayGeode, Agate
- Pryor MountainsTop pick in MontanaBig Horn County, Montana · 34 mi awayFossils, Agate, Chalcedony
- Yellowstone River (Billings area)Top pick in MontanaYellowstone County, Montana · 46 mi awayMontana Agate, Chalcedony, Chert
- Old Nye Picnic AreaStillwater County, Montana · 47 mi awaySilver
- Big Horn CanyonBig Horn County, Montana · 47 mi awayAgate, Chalcedony, Jasper
- Yellowstone RiverPark County, Montana · 81 mi awayAgate, Montana Agate, Moss Agate
- LivingstonPark County, Montana · 84 mi awayAgatized Wood
- JardinePark County, Montana · 84 mi awayArsenic, Gold, Tungsten
Across the state line from Fromberg
Fromberg 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.
- Big Horn RiverBig Horn County, Wyoming · 44 mi awayDry Head Agate
- LovellBig Horn County, Wyoming · 56 mi awayGypsum, Fossils
- LovellBig Horn County, Wyoming · 60 mi awayFossils, Ammonites, Dinosaur Bones
- Rattlesnake MountainPark County, Wyoming · 62 mi awayAnhydrite
- Cedar MountainPark County, Wyoming · 63 mi awayTravertine
- GreybullBig Horn County, Wyoming · 75 mi awayGastroliths, Petrified Dinosaur Bone, Fossils
Fromberg FAQ
Where is Fromberg?+
What rocks and minerals can you find at Fromberg?+
Is collecting allowed at Fromberg?+
How do I get to Fromberg?+
More rockhounding in Montana
See all 87 Montana spots →Open Fromberg on the map
Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.
