Twin Springs: Geode Digging in Malheur County, Oregon

Updated August 2026

Twin Springs is a mapped rockhounding spot in Malheur County, Oregon. Reported finds include agate, jasper, geode, petrified wood. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Check locally
County: Malheur County
State: Oregon
Coordinates: 43.69382, -117.41224

Geology at Twin Springs

This spot sits on surficial deposits; Alluvial deposits, mapped as mixed fluvial sediment that formed within roughly the last 3 million years. Concretions and geodes typically weather out of sedimentary beds like these, standing out as rounded, heavier-or-lighter-than-expected lumps.

Mapped unit: surficial deposits; Alluvial deposits
Age: 3 Ma to present (Quaternary)
Rock types: mixed fluvial sediment
Elevation: 3,320 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 Twin Springs

Best months: March to June. Typical highs run 92°F in midsummer and 37°F in midwinter, with winter lows near 18°F.

Climate normals: NOAA 1991-2020 monthlies, OWYHEE DAM station (9 mi away), adjusted for elevation.

Land & collecting status

Confirm rules before collecting

Land status here is not confirmed. Verify with the managing agency before collecting — federal, state, and tribal rules differ.

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 Oregon/Washington — Rockhounding & mineral material
Oregon Department of Geology and Mineral Industries (DOGAMI)
Oregon Parks and Recreation Department — beach collecting rules
Community submissions reviewed against published agency rules

Found at Twin Springs

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 Twin Springs.

Across the state line from Twin Springs

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

Twin Springs FAQ

Where is Twin Springs?+

Twin Springs is in Malheur County, Oregon, at 43.69382, -117.41224.

What rocks and minerals can you find at Twin Springs?+

Twin Springs is reported to produce Agate, Jasper, Geode, Petrified Wood.

Is collecting allowed at Twin Springs?+

Confirm rules before collecting. Land status here is not confirmed. Verify with the managing agency before collecting — federal, state, and tribal rules differ. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Twin Springs?+

Bring a crack hammer, a chisel, safety glasses, and a bucket. Candidates are rounder and lighter than solid rock; a soil pipe cutter opens them cleaner than a flat smash.

When is the best time to visit Twin Springs?+

The most comfortable months at Twin Springs are March to June.

How do I get to Twin Springs?+

Open the directions link to navigate to 43.69382, -117.41224 in Google Maps. Some spots are remote, so check road conditions before driving out.

More rockhounding in Oregon

See all 177 Oregon spots →

Open Twin Springs on the map

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