Roswell: Quartz Rockhounding in Chaves County, New Mexico

Quick details

Access

Permission required

County

Chaves County

State

New Mexico

Nearest road

River Road

Coordinates

33.39497, -104.39992

Geology at Roswell

This spot sits on Alluvium, mapped as unconsolidated alluvium that formed within roughly the last 129,000 years. Loose deposits like these are float-collecting ground: erosion keeps moving durable rocks and minerals into gravel bars, cutbanks, and washes.

Mapped unit

Alluvium

Age

< 1 Ma (Late Pleistocene to Holocene)

Rock types

unconsolidated alluvium

Elevation

3,460 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 Roswell

Best months: September to May. Typical highs run 96°F in midsummer and 57°F in midwinter, with winter lows near 22°F. Summer heat here is intense, so carry more water than you think you need and work the early morning.

Climate normals: NOAA 1991-2020 monthlies, BITTER LAKES WL REFUGE station (4 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 Roswell

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

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