Almo: Topaz Rockhounding in Cassia County, Idaho

Updated June 2026

Almo is a mapped rockhounding spot in Cassia County, Idaho. Reported finds include topaz. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Cassia County
State: Idaho
Nearest road: Bruesch Ranch Road
Postcode: 83312
Coordinates: 42.10047, -113.65261

Geology at Almo

This spot sits on Alluvial-fan deposits, mapped as gravel 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: Alluvial-fan deposits
Age: 3 Ma to present (Quaternary)
Rock types: gravel
Elevation: 5,580 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 Almo

Best months: March to November. Typical highs run 83°F in midsummer and 36°F in midwinter, with winter lows near 18°F.

Climate normals: NOAA 1991-2020 monthlies, OAKLEY station (15 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

Idaho Panhandle National Forests, Emerald Creek
Idaho Geological Survey
Spencer Opal Mines (fee-dig operator)
Community submissions reviewed against published agency rules

Found at Almo

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Topaz Encyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of Almo.

Across the state line from Almo

Almo is close enough to the Idaho border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Almo FAQ

Where is Almo?+

Almo is in Cassia County, Idaho, at 42.10047, -113.65261. Nearest road: Bruesch Ranch Road.

What rocks and minerals can you find at Almo?+

Almo is reported to produce Topaz.

Is collecting allowed at Almo?+

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 Almo?+

A rock hammer, a pry bar, gloves, and safety glasses suit pegmatite ground. Work weathered zones and check dump piles; coarse crystals often sit in decomposed rock.

When is the best time to visit Almo?+

The most comfortable months at Almo are March to November.

How do I get to Almo?+

Open the directions link to navigate to 42.10047, -113.65261 in Google Maps. The nearest road is Bruesch Ranch Road.

More rockhounding in Idaho

See all 117 Idaho spots →

Open Almo on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.