Union County — Rockhounding in Union County, New Mexico

Union County is a mapped rockhounding spot in Union County, New Mexico. Reported finds include petrified wood, rose agate. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Union County
State: New Mexico
Coordinates: 36.99403, -103.00782

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.

Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

State guidance last verified: April 1, 2026

Rockhound State Park — Collection rules
BLM New Mexico
New Mexico Bureau of Geology and Mineral Resources
Community submissions reviewed against published agency rules

Found at Union County

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Petrified Wood Encyclopedia →
Rose AgateEncyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of Union County.

Across the state line from Union County

Union County is close enough to the New Mexico border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Union County FAQ

Where is Union County?+

Union County is in Union County, New Mexico, at 36.99403, -103.00782.

What rocks and minerals can you find at Union County?+

Union County is reported to produce Petrified Wood, Rose Agate.

Is collecting allowed at Union County?+

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 Union County?+

Open the directions link to navigate to 36.99403, -103.00782 in Google Maps. Some spots are remote — check road conditions before driving out.

More rockhounding in New Mexico

See all 119 New Mexico spots →

Open Union County on the map

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