Alum Mountain — Rockhounding in Grant County, New Mexico

Alum Mountain is a mapped rockhounding spot in Grant County, New Mexico. Reported finds include geodes, carnelian. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Grant County
State: New Mexico
Coordinates: 33.13255, -108.21916

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 Alum 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 Alum Mountain.

Alum Mountain FAQ

Where is Alum Mountain?+

Alum Mountain is in Grant County, New Mexico, at 33.13255, -108.21916.

What rocks and minerals can you find at Alum Mountain?+

Alum Mountain is reported to produce Geodes, Carnelian.

Is collecting allowed at Alum 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 Alum Mountain?+

Open the directions link to navigate to 33.13255, -108.21916 in Google Maps. Some spots are remote — check road conditions before driving out.

More rockhounding in New Mexico

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Open Alum Mountain on the map

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