Rockhounding in Morrow County, Oregon

2 mapped rockhounding spots in Morrow County. Most commonly produces hyalite opal, nodules filled with opal.

Morrow County rockhounding photos

Representative spot and material photos from this county, shown where verified public image records are available.

2 photos

Minerals reported in Morrow County

Hyalite Opal1
Nodules Filled With Opal1

Standout in Morrow County

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

Top pick
Opal Butte
Permission
Morrow County
Opal Butte is noted for hyalite and several gem opal varieties, including rainbow, contra luz, hydrophane, crystal, fire, and blue opal. That range, documented in gemological literature and Mindat locality records, makes the permission-required Morrow County site one of Oregon's more distinctive opal occurrences.
Hyalite Opal

Spots in Morrow County

Spot	Minerals	Coordinates	Access
General AreaBalm Fork Road	Nodules Filled With Opal	45.3274, -119.5130	Permission
Opal Butte	Hyalite Opal	45.0437, -119.6134	Permission

Neighboring counties in Oregon

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

Across the state line from Morrow 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.

Morrow County FAQ

Where can I rockhound in Morrow County, Oregon?+

RockHoundR tracks 2 rockhounding spots in Morrow County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.

What rocks and minerals are common in Morrow County?+

Spots in Morrow County most often produce Hyalite Opal, Nodules Filled With Opal. Individual spots can vary widely.

Are these Morrow 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 Morrow County rockhounding trip

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