Jean: Hydrozincite & Antimony Rockhounding in Clark County, Nevada

Plan your visit

Confirm rules before collecting

County

Clark County

State

Nevada

Nearest road

Reimann Road

Coordinates

35.84206, -115.47607

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

Land & collecting status

Confirm rules before collecting

Land status here is not confirmed. Verify with the managing agency before collecting, federal, state, and tribal rules differ.

Access note: BLM records active mining claims in this area. Collecting from inside an active claim needs the claim holder's permission.

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 Jean

Comfortable months (45 to 90°F highs)

Best months: September to May. Typical highs run 100°F in midsummer and 53°F in midwinter, with winter lows near 30°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, GOODSPRINGS station (3 mi away), adjusted for elevation.

Geology at Jean

This spot sits on Cratonal Sequence - Marine siltstone, limestone, and conglomerate, mapped as siltstone, limestone, and conglomerate that formed roughly 250 to 235 million years ago. Carbonate rock like this dissolves and weathers readily, so fresh road cuts, quarries, and creek exposures are typically the most productive ground.

Mapped unit

Cratonal Sequence - Marine siltstone, limestone, and conglomerate

Age

250–235 Ma (Early Triassic to Middle Triassic)

Rock types

siltstone, limestone, and conglomerate

Elevation

4,200 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