Coaldale: Agate & Chert Rockhounding in Esmeralda County, Nevada

Plan your visit

Generally open to casual rockhounding

County

Esmeralda County

State

Nevada

Nearest road

Veterans Memorial Highway

Coordinates

38.02994, -117.87936

Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.

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.

Access note: Public-access washes and desert surfaces in the Coaldale area. Verify BLM land status and avoid claims, fenced parcels, and old mine workings.

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.

Best time to visit Coaldale

Comfortable months (45 to 90°F highs)

Best months: January to June. Typical highs run 95°F in midsummer and 45°F in midwinter, with winter lows near 17°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, SILVERPEAK station (25 mi away), adjusted for elevation.

Geology at Coaldale

This spot sits on Alluvium, undifferentiated, mapped as coarse alluvium and fine alluvium that formed within roughly the last 3 million 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, undifferentiated

Age

3 Ma to present (Pleistocene to Holocene)

Rock types

coarse alluvium and fine alluvium

Elevation

4,690 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.

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

• BLM Nevada, Recreation
• Nevada Bureau of Mines and Geology
• Royal Peacock Opal Mine (fee-dig operator)
• Community submissions reviewed against published agency rules