Glenwood: Geode Digging in Sevier County, Utah

Plan your visit

Generally open to casual rockhounding

County

Sevier County

State

Utah

Nearest road

Race Loop

Coordinates

38.78754, -111.95471

Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.

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.

Best time to visit Glenwood

Comfortable months (45 to 90°F highs)

Best months: February to November. Typical highs run 88°F in midsummer and 39°F in midwinter, with winter lows near 15°F.

Climate normals: NOAA 1991-2020 monthlies, RICHFIELD RADIO KSVC station (7 mi away), adjusted for elevation.

Geology at Glenwood

This spot sits on Arapien Shale, mapped as mudstone that formed roughly 175 to 160 million years ago. Concretions and geodes typically weather out of sedimentary beds like these, standing out as rounded, heavier-or-lighter-than-expected lumps.

Mapped unit

Arapien Shale

Age

175–160 Ma (Middle Jurassic)

Rock types

mudstone

Elevation

5,830 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.

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