About this location
Quartz Mountain Pass is the highest point on Oregon Highway 140 between Bly and Lakeview, in the Fremont-Winema National Forest of southeastern Oregon's high desert. The mountain, the pass, the adjoining valley, and a nearby creek are all named for a quartz ledge exposed on the ridge — real, USGS-and-Forest-Service-documented geography, not a guessed pin. This puts it squarely on U.S. Forest Service land in a district already known for rockhounding: the same Fremont-Winema forest hosts documented agate, jasper, and common-opal sites like Dry Creek, about 24 miles to the southwest. Specific productivity at Quartz Mountain Pass itself for agate, chalcedony, and jasper isn't independently confirmed in this research, but the land status and regional geology both check out.
Always seek permission where required, follow local laws, and practice Leave No Trace. Locations and details are community-submitted and may be inaccurate. Not sure what's legal here? Read our full guide to rockhounding laws by land type.
Found Here
- Agate, Chalcedony, Jasper: Consistent with the broader Fremont-Winema National Forest volcanic-upland geology that produces jasper, quartz, agate, and opal at nearby named sites (e.g., Dry Creek). Not independently confirmed as specific finds at Quartz Mountain Pass itself — labeled as general-area inference.
Difficulty
Getting there
Quartz Mountain Pass sits on Oregon Highway 140, about 13 miles east of Bly and roughly 30 minutes northwest of Lakeview, in Fremont-Winema National Forest, Lake County. The pass is well-marked — it's also home to the Quartz Mountain Sno-Park, a maintained Forest Service recreation site.
Collecting here
General inference for this Fremont-Winema high-desert terrain: surface/float collecting in volcanic uplands, working exposed ridges and drainages rather than digging into solid rock. Standard federal collecting limits apply on National Forest land (personal, non-commercial use).
Know before you go
Quartz Mountain Pass is U.S. Forest Service land within Fremont-Winema National Forest, which generally permits casual hand collecting of common rock and mineral specimens for personal use under standard national forest rules. Confirm current limits and any local closures with the Fremont-Winema National Forest office before visiting — high desert terrain in Lake County can also mean long stretches without services or cell coverage.
Location on Map
Coordinates: 42.32338, -120.81192
Nearby rockhounding locations
- Quartz Mountain Gold Deposit — Alunite, AzuriteOR · 0.9 mi
- Outlaw Rocks Mining CompanyOR · 11.7 mi
- Big Surprise — MercuryOR · 23.7 mi
- Gaylord Tunnel — Lead, ZincOR · 25.4 mi
- Baldeagle — Gold, SilverOR · 25.9 mi
- Givan Ranch — MercuryOR · 22.8 mi
Frequently asked questions
Is Quartz Mountain Pass, Oregon public land?
Yes — it sits within the Fremont-Winema National Forest, U.S. Forest Service land generally open to casual rock and mineral collecting for personal use.
Where is Quartz Mountain Pass located in Oregon?
On Oregon Highway 140, the highest point of the route between Bly and Lakeview in Lake County, in the Fremont-Winema National Forest.
What can you find rockhounding near Quartz Mountain Pass, Oregon?
The surrounding Fremont-Winema National Forest is documented for jasper, agate, quartz, and common opal at nearby named sites like Dry Creek — Quartz Mountain Pass itself sits in the same volcanic-upland geology, though specific finds there aren't independently confirmed.
⚠️ Always verify current regulations, weather conditions, and access requirements before visiting any location. Information provided is based on community submissions and may not be current or accurate.
Sources
- https://en.wikipedia.org/wiki/Quartz_Mountain,_Oregon — confirms the mountain, pass, valley, and creek are named for a quartz ledge on the ridge; confirms location on OR-140 between Bly and Lakeview.
- https://www.fs.usda.gov/r06/fremont-winema/recreation/quartz-mountain-sno-park — U.S. Forest Service recreation page confirming Quartz Mountain Sno-Park's location, elevation (5,504 ft), and Forest Service management.
- WebSearch synthesis (oregondiscovery.com) — corroborating detail on nearby Fremont-Winema rockhounding sites (Dry Creek, ~24 mi SW of Lakeview) used for regional context only, not as site-specific verification for Quartz Mountain Pass itself.
Recommended Gear for Oregon

Estwing E3-22P Rock Pick
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Watertight Medical Kit
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Northwest Treasure Hunter's Gem and Mineral Guide
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