Sevenmile Canyon: Bornite & Carnotite Rockhounding in Grand County, Utah

Updated June 2026

Sevenmile Canyon is a mapped rockhounding spot in Grand County, Utah. Reported finds include bornite, carnotite, chalcocite, chalcopyrite, pyrite, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Permission required
County: Grand County
State: Utah
Nearest road: Circle-O
Coordinates: 38.66694, -109.63980

Geology at Sevenmile Canyon

This spot sits on ground mapped as Stream 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: Stream alluvium
Age: < 1 Ma (Late Pleistocene to Holocene)
Elevation: 4,210 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 Sevenmile Canyon

Best months: February to May. Typical highs run 98°F in midsummer and 41°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, ARCHES NP HQS station (4 mi away).

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 Sevenmile Canyon

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 Sevenmile Canyon.

Sevenmile Canyon FAQ

Where is Sevenmile Canyon?+

Sevenmile Canyon is in Grand County, Utah, at 38.66694, -109.63980. Nearest road: Circle-O.

What rocks and minerals can you find at Sevenmile Canyon?+

Sevenmile Canyon is reported to produce Bornite, Carnotite, Chalcocite, Chalcopyrite, Pyrite, Uraninite.

Is collecting allowed at Sevenmile Canyon?+

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 Sevenmile Canyon?+

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 Sevenmile Canyon?+

The most comfortable months at Sevenmile Canyon are February to May. Summer heat here is intense, so carry more water than you think you need and work the early morning.

How do I get to Sevenmile Canyon?+

Open the directions link to navigate to 38.66694, -109.63980 in Google Maps. The nearest road is Circle-O.

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