Lake County Rockhounding Sites
Hart Mountain Antelope Refuge

The Lake County rock hounding sites are known for their great deposits of rocks and minerals, attracting thousands of rock collectors each year. Some of the areas are located on the public lands managed by the Bureau of Land Management (BLM) and U.S. Forest Service. Also, there are privately owned mines, open to the public for rockhounding for fees.

Popular Lake County Rockhounding Sites

Glass Butte Obsidian - between Bend and Burns

Located off Highway 20 between milepost 75 and 81, Glass Butte and Little Glass Butte are the best place in Oregon to find gem-quality obsidian. There are numerous spots, several gravel roads in this area where you can find a variety of obsidians including exceptional gold, silver, rainbow, red, black, mahogany, lace, and fire sheen. Also, you can find large pieces of double-flow obsidian.

Mahogony ObsidianIf you travel east on Highway 20, turn south to the dirt gravel Obsidian Road (BLM Road 6540) just before milepost 77 and drive for about 2-3 miles. The main Glass Butte Obsidian deposit is located on the left. On the right, you can find red, black, snowflake, lace and gold sheen. Continue driving on the dirt road, turn left and go around Little Glass Butte and then north. You can find excellent material along your way including red, midnight lace, silver sheen, and rainbow sheen.

If you head west on Highway 20, you can take the road between milepost 82 and 81 and travel south and then turn right toward Glass Butte Obsidian.

Rocks & Minerals: Obsidian varieties including Gold and Silver Sheen, Fire, Rainbow, Green, Midnight Lace, Leopard Skin, Double-flow, and Mahogany
Tools: Rock hammers, picks, and shovels

Warning! Edges of broken obsidian and chips are sharp. Use gloves and eye protection. Be prepared in the case if a brittle obsidian glass damages tires; have a spare tire or a tire repair kit.


Crane Creek Thunderegg Bed in the Fremont National Forest

Crane Creek Thundereggs

A Crane Creek thunderegg digging area is hidden deep in the Fremont National Forest. This area produces nodules filled with blue agate sometimes tiny pieces of quartz crystals. The external layer is reddish-brown. The bed is not easily accessible because the forest road crosses the Crane Creek a few times and can be washed out in some places.

Rocks & Minerals: Thundereggs, agate, jasper, and petrified wood
Tools: Geology pick, hammer, shovel


Flook Lake - Hart Mountain Antelope Refuge

Flook Lake RockhoundingRockhounding is permitted in the Hart Mountain Antelope Refugee for surface rocks collecting only. Do not to exceed seven pounds per person per day. Digging with any implement and blasting is prohibited. Always check up-to-date regulations and current conditions.

Other Hart Mountain rockhounding collection sites: the western side of the Warner Mountains, DeGarmo Canyon, and Arsenic Canyon.

Rocks & Minerals: Agate, Jasper, Obsidian, Fire Opal
Tools: Not allowed - surface collecting only


Free Oregon Sunstone Public Collection

Sunstone Public Collection AreaOregon Sunstone Public Collection Area is only one free public place in Oregon where visitors can collect sunstones for personal use.

Rocks & Minerals: Sunstones
Tools: Picks and shovels


Recognized as the state gem, Oregon Sunstones are unique transparent or translucent feldspar that contains small amounts of copper inclusions. Rare and beautiful Oregon Sunstones are found only in the high desert of South-Central and Southeastern Oregon.


Fee Oregon Sunstone Collection Sites

Fee Oregon Sunstone Collection SitesFee Oregon Sunstone Collection Sites offer opportunities to find rare and prized colored sunstones. Currently, three mines are available to the public: Dust Devil, Spectrum Sunstone and Double Eagle Mines.


Marli B. Miller. Roadside Geology of Oregon. 2014. Mountain Press Publishing Company Missoula, Montana.
William A. Kappele. Rockhounding Nevada: A Guide to the State's Best Rockhounding Sites. 2010. A Falcon Guide.
Lars Johnson. Rockhounding Oregon: A Guide to the State's Best Rockhounding Sites (Rockhounding Series). 2014. A Falcon Guide.
William A. Kappele. Rockhounding Nevada: A Guide To The State's Best Rockhounding Sites (Rockhounding Series). 2011. A Falcon Guide.
Dan R. Lynch, Bob Lynch. Rocks & Minerals of Washington and Oregon: A Field Guide to the Evergreen and Beaver States (Rocks & Minerals Identification Guides). 2012.

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The Oregon Rockhounding Map provides information about some of the many rockhounding sites of the state of Oregon. Information is subject to change at any time, and the Oregon Discovery team cannot guarantee that is either current or correct. Be aware that there are some mine claims and private lands near the public collecting areas. Determining the land status and minerals' collection rules at the site is your responsibility.

Currently, this map is incomplete but new rockhounding sites and related details will be added in the future.

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