Silver Island Mountains: Azurite & Barite Rockhounding in Tooele County, Utah

Updated June 2026

Silver Island Mountains is a mapped rockhounding spot in Tooele County, Utah. Reported finds include azurite, barite, cerussite, galena, jamesonite, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Tooele County
State: Utah
Nearest road: Cave Canyon Road
Coordinates: 40.92251, -113.78001

Geology at Silver Island Mountains

This spot sits on Alluvium and colluvium, mapped as unconsolidated alluvium and colluvium that formed within roughly the last 3 million 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 and colluvium
Age: 3 Ma to present (Quaternary)
Rock types: unconsolidated alluvium and colluvium
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 Silver Island Mountains

Best months: March to October. Typical highs run 90°F in midsummer and 33°F in midwinter, with winter lows near 17°F.

Climate normals: NOAA 1991-2020 monthlies, WENDOVER AP AWOS station (19 mi away), adjusted for elevation.

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

BLM Utah — Rockhounding overview
Utah Geological Survey — collecting guidelines
SITLA — surface use rules
Community submissions reviewed against published agency rules

Found at Silver Island Mountains

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

Nearby rockhounding spots

Other rockhounding spots within driving distance of Silver Island Mountains.

Across the state line from Silver Island Mountains

Silver Island Mountains is close enough to the Utah border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Silver Island Mountains FAQ

Where is Silver Island Mountains?+

Silver Island Mountains is in Tooele County, Utah, at 40.92251, -113.78001. Nearest road: Cave Canyon Road.

What rocks and minerals can you find at Silver Island Mountains?+

Silver Island Mountains is reported to produce Azurite, Barite, Cerussite, Galena, Jamesonite, Malachite, Pyrite.

Is collecting allowed at Silver Island Mountains?+

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 Silver Island Mountains?+

A rock hammer, gloves, and safety glasses are enough for oxidized copper ground. Look for green and blue staining on weathered rock and in old dump piles.

When is the best time to visit Silver Island Mountains?+

The most comfortable months at Silver Island Mountains are March to October.

How do I get to Silver Island Mountains?+

Open the directions link to navigate to 40.92251, -113.78001 in Google Maps. The nearest road is Cave Canyon Road.

More rockhounding in Utah

See all 246 Utah spots →

Open Silver Island Mountains on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.