Leesburg: Gold Prospecting in Lemhi County, Idaho

Updated June 2026

Leesburg is a mapped rockhounding spot in Lemhi County, Idaho. Reported finds include gold, petrified wood. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Lemhi County
State: Idaho
Nearest road: National Forest Development Road 242
Coordinates: 45.22159, -114.11660

Geology at Leesburg

This spot sits on Surficial deposits, mapped as sand and gravel that formed within roughly the last 3 million years. Stream-worked gravels like these are where placer gold tends to concentrate, settling toward bedrock, inside gravel bars, and behind boulders.

Mapped unit: Surficial deposits
Age: 3 Ma to present (Quaternary)
Rock types: sand and gravel
Elevation: 6,560 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 Leesburg

Best months: April to October. Typical highs run 77°F in midsummer and 19°F in midwinter, with winter lows near 2°F.

Climate normals: NOAA 1991-2020 monthlies, SALMON-KSRA station (12 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 Leesburg

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 Leesburg.

Across the state line from Leesburg

Leesburg 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.

Leesburg FAQ

Where is Leesburg?+

Leesburg is in Lemhi County, Idaho, at 45.22159, -114.11660. Nearest road: National Forest Development Road 242.

What rocks and minerals can you find at Leesburg?+

Leesburg is reported to produce Gold, Petrified Wood.

Is collecting allowed at Leesburg?+

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 Leesburg?+

A gold pan, a classifier screen, a small shovel, and a snuffer bottle cover the basics. Motorized equipment and sluices fall under separate rules in most states, so start with hand tools.

When is the best time to visit Leesburg?+

The most comfortable months at Leesburg are April to October.

How do I get to Leesburg?+

Open the directions link to navigate to 45.22159, -114.11660 in Google Maps. The nearest road is National Forest Development Road 242.

More rockhounding in Idaho

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Open Leesburg on the map

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