West Side Warner Mountains (Hart Mountain National Antelope Refuge)

This location refers to the western side of the Warner Mountains within Hart Mountain National Antelope Refuge, in Lake County, Oregon — high desert country managed by the U.S. Fish and Wildlife Service. Warner Peak, at 8,017 feet, is the refuge's highest point, about 10 miles northeast of the small community of Plush. The refuge's own visitor guidance specifically calls out the western edge of the mountains as good ground for agate, jasper, and occasional fire opal. This is real, agency-confirmed rockhounding ground, but it operates under wildlife-refuge rules, not standard BLM/USFS rockhounding rules — surface collecting only, strict pound limits, and no digging. Read the rules section before you go; they're stricter than a typical public-land site.

Hart Mountain National Antelope Refuge is in Lake County, Oregon, reached via refuge roads from Plush, about 10 miles southwest of Warner Peak. The refuge spans elevations from 4,470 feet at Poker Jim Ridge to 8,017 feet at Warner Peak's summit. Other named rockhounding areas within the refuge include DeGarmo Canyon and Arsenic Canyon.

Surface collection only — no digging. Bring a bag and eyes for float material; leave shovels and rock hammers at home for anything but breaking down what you've already picked up off the surface.

This is a national wildlife refuge, not a fee-dig operation — no admission charged for rockhounding, but strict collecting limits apply.

• Collecting limit: up to 7 pounds of rock per person per day.
• Method: surface collection only — "disturbing the ground or using tools or equipment" is explicitly prohibited.
• Prohibited: collecting artifacts, arrowheads, stone tools, or any cultural material; removing plants. Verified against fws.gov (Hart Mountain National Antelope Refuge rules and policies page), August 2026.

This is USFWS-managed refuge land, and refuge rules on rockhounding are stricter than typical BLM or Forest Service policy — the 7-lb/person/day surface-only limit is a hard rule, not a guideline. Do not bring digging tools expecting to use them. The refuge is remote high desert with real elevation and weather exposure; check current refuge conditions and any seasonal closures (parts of the refuge close seasonally for wildlife, particularly pronghorn) before planning a trip.