Circle Cliffs: Agate & Chalcedony Rockhounding in Garfield County, Utah

Updated June 2026

Circle Cliffs is a mapped rockhounding spot in Garfield County, Utah. Reported finds include agate, chalcedony, jasper, petrified wood, silicified wood. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Permission required
County: Garfield County
State: Utah
Coordinates: 37.99622, -111.12909

Geology at Circle Cliffs

This spot sits on Glen Canyon Group, mapped as arenite that formed roughly 200 to 175 million years ago. Sedimentary beds like these are the typical host for petrified and silicified wood, which weathers out as durable float on slopes and in washes.

Mapped unit: Glen Canyon Group
Age: 200–175 Ma (Early Jurassic)
Rock types: arenite
Elevation: 7,220 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 Circle Cliffs

Best months: March to November. Typical highs run 82°F in midsummer and 37°F in midwinter, with winter lows near 19°F. At about 7,220 ft, snow can block access from late fall well into spring, so check conditions outside of summer.

Climate normals: NOAA 1991-2020 monthlies, BOULDER station (17 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 Circle Cliffs

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 Circle Cliffs.

Circle Cliffs FAQ

Where is Circle Cliffs?+

Circle Cliffs is in Garfield County, Utah, at 37.99622, -111.12909.

What rocks and minerals can you find at Circle Cliffs?+

Circle Cliffs is reported to produce Agate, Chalcedony, Jasper, Petrified Wood, Silicified Wood.

Is collecting allowed at Circle Cliffs?+

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 Circle Cliffs?+

A rock hammer, sturdy gloves, and a padded bag cover petrified wood hunting. Most pieces are surface float, so walking slopes and washes beats digging.

When is the best time to visit Circle Cliffs?+

The most comfortable months at Circle Cliffs are March to November. At about 7,220 ft, snow can block access from late fall well into spring, so check conditions outside of summer.

How do I get to Circle Cliffs?+

Open the directions link to navigate to 37.99622, -111.12909 in Google Maps. Some spots are remote, so check road conditions before driving out.

More rockhounding in Utah

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Open Circle Cliffs on the map

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