Glass Mountain — Rockhounding in Siskiyou County, California

Glass Mountain is a mapped rockhounding spot in Siskiyou County, California. Reported finds include obsidian. Below: coordinates, access notes, nearby spots, and trip-planning links.

Map showing Glass Mountain in Siskiyou County, California

Quick details

Access
Public area

Land & collecting status

Generally open to casual rockhounding

Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.

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.

Found at Glass Mountain

Each chip links to all spots in the U.S. that produce that material.

Nearby rockhounding spots

Other rockhounding spots within driving distance of Glass Mountain.

Glass Mountain FAQ

Where is Glass Mountain?+
Glass Mountain is in Siskiyou County, California, at 41.60153, -121.50444.
What rocks and minerals can you find at Glass Mountain?+
Glass Mountain is reported to produce Obsidian.
Is collecting allowed at Glass Mountain?+
Generally open to casual rockhounding. Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig. Always confirm current rules with the managing agency before a trip.
How do I get to Glass Mountain?+
Open the directions link to navigate to 41.60153, -121.50444 in Google Maps. Some spots are remote — check road conditions before driving out.

More rockhounding in California

See all 97 California spots →

Open Glass Mountain on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.

Download on the App StoreGet it on Google Play