Sol Duc River: Agate & Chert Rockhounding in Clallam County, Washington

Updated June 2026

Sol Duc River is a mapped rockhounding spot in Clallam County, Washington. Reported finds include agate, chert, jasper. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Clallam County
State: Washington
Coordinates: 47.93471, -124.49597

Geology at Sol Duc River

This spot sits on alluvium, mapped as sand and gravel that formed within roughly the last 3 million years. Gravels like these concentrate whatever survives the river: agate, jasper, and other tough silica typically show up as rounded, waxy stones.

Mapped unit: alluvium
Age: 3 Ma to present (Quaternary)
Rock types: sand and gravel
Elevation: 130 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 Sol Duc River

Conditions here are workable year-round, with typical highs from 48°F in winter to 68°F in summer.

Climate normals: NOAA 1991-2020 monthlies, QUILLAYUTE AP station (3 mi away).

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

Washington Geological Survey (DNR)
Stonerose Interpretive Center — Visit & rules
BLM Spokane District
Community submissions reviewed against published agency rules

Found at Sol Duc River

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 Sol Duc River.

Sol Duc River FAQ

Where is Sol Duc River?+

Sol Duc River is in Clallam County, Washington, at 47.93471, -124.49597.

What rocks and minerals can you find at Sol Duc River?+

Sol Duc River is reported to produce Agate, Chert, Jasper.

Is collecting allowed at Sol Duc River?+

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 Sol Duc River?+

Most agate and jasper is surface float: bring a spray bottle, a pick or small shovel, and a sturdy bag. Wet stones show their banding and translucence.

When is the best time to visit Sol Duc River?+

Sol Duc River is workable year-round.

How do I get to Sol Duc River?+

Open the directions link to navigate to 47.93471, -124.49597 in Google Maps. Some spots are remote, so check road conditions before driving out.

More rockhounding in Washington

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Open Sol Duc River on the map

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