Rockhounding in Crook County, Oregon: 11 Spots & Minerals

Standouts in Crook County

Hand-picked spots in Crook County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.

Top pick
White Fir Spring
Public
Crook County
White Fir Spring is a public Ochoco National Forest thunderegg locality, with DOGAMI and Mindat records tying the site to agate- and jasper-filled nodules. It stands out because the Crook County material is strongly associated with jasper cores, a useful contrast to Oregon thunderegg beds dominated by clearer chalcedony.
Thundereggs
No photo
Top pick
Whistler Spring
Public
Crook County
Whistler Spring is one of central Oregon's classic free National Forest thunderegg sites, listed by DOGAMI alongside White Fir in the Madras-Prineville rockhounding belt. The site is notable for accessible rhyolite-hosted nodules in Crook County's Ochoco country, a compact example of the geology behind Oregon's state rock.
Thundereggs

Spots in Crook County

Spot	Minerals	Coordinates	Access
Bear Creek	Moss Agate Chalcedony Drusy Quartz	44.0724, -120.7454	Public
Carey Agate BedsMaury Road	Agate Chalcedony Jasper	44.0330, -120.4185	Public
Desolation Canyon	Thundereggs	44.4757, -120.5074	Public
Forked Horn Butte	Thundereggs	44.4553, -120.5610	Public
Harvey CreekMill Creek Road	Thundereggs	44.4578, -120.5968	Public
S Fork Crooked River	Agatized Limb Casts	44.0844, -120.0447	Public
Sheep creek	Moss Agate	44.3017, -120.4629	Public
Shores of Ochoco ReservoirNortheast Ochoco Highway	Ochoco Jasper	44.3125, -120.6803	Public
Whistler SpringNational Forest Development Road 2700-500	Thundereggs	44.4964, -120.4859	Public
White Fir SpringWildcat Mountain Road	Thundereggs	44.4046, -120.5536	Public
White RockWhite Rock Spring Road	Thundereggs Agate Chalcedony Opal	44.4245, -120.5465	Public

Neighboring counties in Oregon

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

Crook County FAQ

Where can I rockhound in Crook County, Oregon?+

RockHoundR tracks 11 rockhounding spots in Crook County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.

What rocks and minerals are common in Crook County?+

Spots in Crook County most often produce Thundereggs, Chalcedony, Agate, Moss Agate, Agatized Limb Casts. Individual spots can vary widely.

Are these Crook 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 Crook County rockhounding trip

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

Rockhounding in Crook County, Oregon

Crook County rockhounding photos

Minerals reported in Crook County