Rockhounding in Grant County, Oregon
2 mapped rockhounding spots in Grant County. Most commonly produces agate, fossils, gold, jasper.
Map showing 2 rockhounding spots in Grant County, Oregon
Minerals reported in Grant County
Spots in Grant County
| Spot | Minerals | Coordinates | Access |
|---|---|---|---|
| John Day RiverJohn Day Highway | 44.4968, -119.5954 | Public | |
| Orofino Mine areaForest Road 100 | 44.7479, -118.4768 | Permission |
Neighboring counties in Oregon
Adjacent rockhounding counties, ranked by how close their centroids sit to Grant County. A natural extension if Grant County is already on your trip plan.
- Morrow County~47 mi2 spotsTop: Hyalite Opal, Nodules Filled With Opal
- Crook County~76 mi11 spotsTop: Thundereggs, Chalcedony, Agate
- Baker County~83 mi3 spotsTop: Agate, Agatized Wood, Chalcedony
- Malheur County~90 mi3 spotsTop: Agate, Chalcedony, Chert
- Jefferson County~92 mi4 spotsTop: Agate, Chalcedony, Jasper
- Wasco County~107 mi5 spotsTop: Jasper, Agate, Chalcedony
Across the state line from Grant 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 Oregon.
Grant County FAQ
Where can I rockhound in Grant County, Oregon?+
RockHoundR tracks 2 rockhounding spots in Grant County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.
What rocks and minerals are common in Grant County?+
Spots in Grant County most often produce Agate, Fossils, Gold, Jasper, Petrified Wood. Individual spots can vary widely.
Are these Grant 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 Grant County rockhounding trip
Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.
