Greybull — Rockhounding in Big Horn County, Wyoming
Greybull is a mapped rockhounding spot in Big Horn County, Wyoming. Reported finds include gastroliths, petrified dinosaur bone, fossils. Below: coordinates, access notes, nearby spots, and trip-planning links.
Map showing Greybull in Big Horn County, Wyoming
Quick details
- Access
- Public area
- County
- Big Horn County
- State
- Wyoming
- Coordinates
- 44.64648, -107.80699
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 Wyoming
- Wyoming State Geological Survey
- Fossil Butte National Monument
- Community submissions reviewed against published agency rules
Found at Greybull
Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.
- GastrolithsEncyclopedia →
- Petrified Dinosaur BoneEncyclopedia →
- FossilsEncyclopedia →
Nearby rockhounding spots
Other rockhounding spots within driving distance of Greybull.
- Red GulchBig Horn County, Wyoming · 9 mi awayGypsum
- LovellBig Horn County, Wyoming · 16 mi awayFossils, Ammonites, Dinosaur Bones
- LovellBig Horn County, Wyoming · 21 mi awayGypsum, Fossils
- Big Horn RiverBig Horn County, Wyoming · 31 mi awayDry Head Agate
- HyattvilleBig Horn County, Wyoming · 31 mi awayGypsum, Dinosaur Bones, Gastroliths
- Ten SleepWashakie County, Wyoming · 42 mi awayGypsum
- WorlandWashakie County, Wyoming · 47 mi awayAgate, Chalcedony, Red Jasper
- BuffaloJohnson County, Wyoming · 63 mi awayAgate, Chalcedony, Gastroliths
Across the state line from Greybull
Greybull is close enough to the Wyoming border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.
Greybull FAQ
Where is Greybull?+
What rocks and minerals can you find at Greybull?+
Is collecting allowed at Greybull?+
How do I get to Greybull?+
More rockhounding in Wyoming
See all 82 Wyoming spots →Open Greybull on the map
Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.
