Rockhounding in Big Horn County, Wyoming

6 mapped rockhounding spots in Big Horn County. Most commonly produces fossils, gastroliths, gypsum, dinosaur bones.

Map showing 6 rockhounding spots in Big Horn County, Wyoming

Minerals reported in Big Horn County

  • Fossils4
  • Gastroliths3
  • Gypsum3
  • Dinosaur Bones2
  • Ammonites1
  • Dry Head Agate1
  • Petrified Dinosaur Bone1

Spots in Big Horn County

SpotMineralsCoordinatesAccess
Big Horn RiverMouth of the Canyon Trail
  • Dry Head Agate
44.9643, -108.2509Public
Greybull
  • Gastroliths
  • Petrified Dinosaur Bone
  • Fossils
44.6465, -107.8070Public
HyattvilleRea Grove Lane44.2441, -107.5260Public
Lovell44.7647, -108.2057Public
LovellMedicine Wheel Passage
  • Fossils
  • Ammonites
  • Dinosaur Bones
  • Gastroliths
44.7977, -108.0474Public
Red Gulch44.5175, -107.8189Public

Neighboring counties in Wyoming

Adjacent rockhounding counties, ranked by how close their centroids sit to Big Horn County. A natural extension if Big Horn County is already on your trip plan.

Across the state line from Big Horn County

Rockhounding counties in neighboring states within driving range. Geology rarely respects state borders — these are often the closest mapped spots you can reach without going deeper into Wyoming.

Big Horn County FAQ

Where can I rockhound in Big Horn County, Wyoming?+
RockHoundR tracks 6 rockhounding spots in Big Horn County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.
What rocks and minerals are common in Big Horn County?+
Spots in Big Horn County most often produce Fossils, Gastroliths, Gypsum, Dinosaur Bones, Ammonites. Individual spots can vary widely.
Are these Big Horn County rockhounding spots on public land?+
Most spots in this list are tagged public, but access can change with seasons, claims, and local closures. Always verify before driving out — links in the app open the right BLM, USFS, or county pages.

Plan a Big Horn County rockhounding trip

Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.

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