Belen to Los Lunas: Agate Rockhounding in Valencia County, New Mexico

Updated June 2026

Belen to Los Lunas is a mapped rockhounding spot in Valencia County, New Mexico. Reported finds include agate. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Valencia County
State: New Mexico
Nearest road: Sedillo Road
Postcode: 87130
Coordinates: 34.71467, -106.74673

Geology at Belen to Los Lunas

This spot sits on Alluvium, mapped as unconsolidated alluvium that formed within roughly the last 129,000 years. Gravels like these concentrate whatever survives the river: agate, jasper, and other tough silica typically show up as rounded, waxy stones.

Mapped unit: Alluvium
Age: < 1 Ma (Late Pleistocene to Holocene)
Rock types: unconsolidated alluvium
Elevation: 4,830 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 Belen to Los Lunas

Best months: September to May. Typical highs run 93°F in midsummer and 51°F in midwinter, with winter lows near 19°F.

Climate normals: NOAA 1991-2020 monthlies, LOS LUNAS 3 SSW station (4 mi away).

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 Belen to Los Lunas

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

Agate Encyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of Belen to Los Lunas.

Belen to Los Lunas FAQ

Where is Belen to Los Lunas?+

Belen to Los Lunas is in Valencia County, New Mexico, at 34.71467, -106.74673. Nearest road: Sedillo Road.

What rocks and minerals can you find at Belen to Los Lunas?+

Belen to Los Lunas is reported to produce Agate.

Is collecting allowed at Belen to Los Lunas?+

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 Belen to Los Lunas?+

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 Belen to Los Lunas?+

The most comfortable months at Belen to Los Lunas are September to May.

How do I get to Belen to Los Lunas?+

Open the directions link to navigate to 34.71467, -106.74673 in Google Maps. The nearest road is Sedillo Road.

More rockhounding in New Mexico

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Open Belen to Los Lunas on the map

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