Best spot

Opal Butte — Rockhounding in Morrow County, Oregon

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. Reported finds include hyalite opal. Below: coordinates, access notes, nearby spots, and trip-planning links.

Opal Butte photos

Public image records connected to this spot or its reported material, with source and license attribution.

4 photos

Map showing Opal Butte in Morrow County, Oregon

Quick details

Access
Permission required
State
Oregon

Land & collecting status

Permission required before collecting

Requires landowner or agency permission before any collecting. Do not enter without explicit authorization.

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:

Found at Opal Butte

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Nearby rockhounding spots

Other rockhounding spots within driving distance of Opal Butte.

Across the state line from Opal Butte

Opal Butte is close enough to the Oregon border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Opal Butte FAQ

Why is Opal Butte one of the best rockhounding spots in Oregon?+
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.
Where is Opal Butte?+
Opal Butte is in Morrow County, Oregon, at 45.04372, -119.61342.
What rocks and minerals can you find at Opal Butte?+
Opal Butte is reported to produce Hyalite Opal.
Is collecting allowed at Opal Butte?+
Permission required before collecting. Requires landowner or agency permission before any collecting. Do not enter without explicit authorization. Always confirm current rules with the managing agency before a trip.
How do I get to Opal Butte?+
Open the directions link to navigate to 45.04372, -119.61342 in Google Maps. Some spots are remote — check road conditions before driving out.

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