Mogollon: Agate & Chalcedony Rockhounding in Catron County, New Mexico

Updated June 2026

Mogollon is a mapped rockhounding spot in Catron County, New Mexico. Reported finds include agate, chalcedony, jasper, fluorite. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Catron County
State: New Mexico
Nearest road: Bursum Road
Coordinates: 33.38986, -108.80223

Geology at Mogollon

This spot sits on Upper middle Tertiary rhyolitic lavas and local tuffs, mapped as rhyolite that formed roughly 34 to 23 million years ago. Volcanic ground like this is where agate, jasper, and other chalcedony typically form, filling old gas pockets and fracture seams in the flow rock.

Mapped unit: Upper middle Tertiary rhyolitic lavas and local tuffs
Age: 34–23 Ma (Early Oligocene to Late Oligocene)
Rock types: rhyolite
Elevation: 6,960 ft

Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.

Best time to visit Mogollon

Conditions here are workable year-round, with typical highs from 49°F in winter to 83°F in summer.

Climate normals: NOAA 1991-2020 monthlies, GLENWOOD station (6 mi away), adjusted for elevation.

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 Mogollon

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

Nearby rockhounding spots

Other rockhounding spots within driving distance of Mogollon.

Across the state line from Mogollon

Mogollon 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.

Mogollon FAQ

Where is Mogollon?+

Mogollon is in Catron County, New Mexico, at 33.38986, -108.80223. Nearest road: Bursum Road.

What rocks and minerals can you find at Mogollon?+

Mogollon is reported to produce Agate, Chalcedony, Jasper, Fluorite.

Is collecting allowed at Mogollon?+

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.

What tools should I bring to Mogollon?+

Most agate and jasper is surface float: bring a spray bottle, a pick or small shovel, and a sturdy bag. Wet stones show their banding and translucence.

When is the best time to visit Mogollon?+

Mogollon is workable year-round.

How do I get to Mogollon?+

Open the directions link to navigate to 33.38986, -108.80223 in Google Maps. The nearest road is Bursum Road.

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Open Mogollon on the map

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