Dugway Range: Amethyst & Quartz Rockhounding in Tooele County, Utah

Updated July 2026

Dugway Range is a mapped rockhounding spot in Tooele County, Utah. Reported finds include amethyst, quartz. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Permission required
County: Tooele County
State: Utah
Coordinates: 39.91467, -113.04139

Geology at Dugway Range

This spot sits on Lake Bonneville deposits, mapped as clay 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: Lake Bonneville deposits
Age: 3 Ma to present (Pleistocene)
Rock types: clay
Elevation: 4,610 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 Dugway Range

Best months: March to June. Typical highs run 94°F in midsummer and 38°F in midwinter, with winter lows near 17°F.

Climate normals: NOAA 1991-2020 monthlies, FISH SPRINGS NWR station (20 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

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

Found at Dugway Range

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 Dugway Range.

Across the state line from Dugway Range

Dugway Range 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.

Dugway Range FAQ

Where is Dugway Range?+

Dugway Range is in Tooele County, Utah, at 39.91467, -113.04139.

What rocks and minerals can you find at Dugway Range?+

Dugway Range is reported to produce Amethyst, Quartz.

Is collecting allowed at Dugway Range?+

Permission required before collecting. Requires landowner or agency permission before any collecting. Do not enter without explicit authorization. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Dugway Range?+

A rock hammer, a small pry bar, gloves, and safety glasses cover most crystal ground. A screen helps in loose pocket soil, and newspaper protects points on the way out.

When is the best time to visit Dugway Range?+

The most comfortable months at Dugway Range are March to June.

How do I get to Dugway Range?+

Open the directions link to navigate to 39.91467, -113.04139 in Google Maps. Some spots are remote, so check road conditions before driving out.

More rockhounding in Utah

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Open Dugway Range on the map

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