Woodside: Agate & Carnotite Rockhounding in Emery County, Utah

Updated June 2026

Woodside is a mapped rockhounding spot in Emery County, Utah. Reported finds include agate, carnotite, chalcedony, chert, petrified dinosaur bone, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Emery County
State: Utah
Nearest road: Dinosaur Diamond Prehistoric Highway
Coordinates: 39.20162, -110.33459

Geology at Woodside

This spot sits on ground mapped as Blue Gate Member of Mancos Shale that formed roughly 100 to 66 million years ago. Sedimentary layers like these are where fossils are typically preserved, and fresh exposures after rain or in active cuts tend to produce best.

Mapped unit: Blue Gate Member of Mancos Shale
Age: 100–66 Ma (Late Cretaceous)
Elevation: 4,840 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 Woodside

Best months: February to June. Typical highs run 94°F in midsummer and 44°F in midwinter, with winter lows near 28°F.

Climate normals: NOAA 1991-2020 monthlies, SUNNYSIDE CITY station (24 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 Woodside

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 Woodside.

Woodside FAQ

Where is Woodside?+

Woodside is in Emery County, Utah, at 39.20162, -110.33459. Nearest road: Dinosaur Diamond Prehistoric Highway.

What rocks and minerals can you find at Woodside?+

Woodside is reported to produce Agate, Carnotite, Chalcedony, Chert, Petrified Dinosaur Bone, Jasper, Silicified Wood.

Is collecting allowed at Woodside?+

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 Woodside?+

A rock hammer, a cold chisel, safety glasses, and newspaper or foam for wrapping finds cover most fossil ground. A trowel and a sieve help in soft exposures.

When is the best time to visit Woodside?+

The most comfortable months at Woodside are February to June.

How do I get to Woodside?+

Open the directions link to navigate to 39.20162, -110.33459 in Google Maps. The nearest road is Dinosaur Diamond Prehistoric Highway.

More rockhounding in Utah

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Open Woodside on the map

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