Meerschaum area surfaces: Chert Rockhounding in Grant County, New Mexico

Updated June 2026

Meerschaum area surfaces is a mapped rockhounding spot in Grant County, New Mexico. Reported finds include chert. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Permission required
County: Grant County
State: New Mexico
Nearest road: NM 15
Coordinates: 33.05106, -108.19467

Geology at Meerschaum area surfaces

This spot sits on Lower-upper middle Tertiary basaltic andesites and andesites of the Mogollon Group, mapped as andesite, basaltic andesite, and basalt 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: Lower-upper middle Tertiary basaltic andesites and andesites of the Mogollon Group
Age: 34–23 Ma (Early Oligocene to Late Oligocene)
Rock types: andesite, basaltic andesite, and basalt
Elevation: 6,170 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 Meerschaum area surfaces

Conditions here are workable year-round, with typical highs from 55°F in winter to 87°F in summer.

Climate normals: NOAA 1991-2020 monthlies, GILA HOT SPRINGS station (10 mi away), adjusted for elevation.

Land & collecting status

Permission required before collecting

Requires landowner or agency permission before any collecting. Do not enter without explicit authorization.

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 Meerschaum area surfaces

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

Chert Encyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of Meerschaum area surfaces.

Across the state line from Meerschaum area surfaces

Meerschaum area surfaces 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.

Meerschaum area surfaces FAQ

Where is Meerschaum area surfaces?+

Meerschaum area surfaces is in Grant County, New Mexico, at 33.05106, -108.19467. Nearest road: NM 15.

What rocks and minerals can you find at Meerschaum area surfaces?+

Meerschaum area surfaces is reported to produce Chert.

Is collecting allowed at Meerschaum area surfaces?+

Permission required before collecting. Requires landowner or agency permission before any collecting. Do not enter without explicit authorization. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Meerschaum area surfaces?+

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 Meerschaum area surfaces?+

Meerschaum area surfaces is workable year-round.

How do I get to Meerschaum area surfaces?+

Open the directions link to navigate to 33.05106, -108.19467 in Google Maps. The nearest road is NM 15.

More rockhounding in New Mexico

See all 119 New Mexico spots →

Open Meerschaum area surfaces on the map

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