Smelt Sands State Park: Agate & Jasper Rockhounding in Lincoln County, Oregon

Updated August 2026

Smelt Sands State Park is a mapped rockhounding spot in Lincoln County, Oregon. Reported finds include agate, jasper. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Lincoln County
State: Oregon
Nearest road: Coolidge Lane
Postcode: 97498
Coordinates: 44.32253, -124.10611

Geology at Smelt Sands State Park

This spot sits on Terrace, pediment, and lag gravels, mapped as gravel, boulders, and clay 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: Terrace, pediment, and lag gravels
Age: 3 Ma to present (Pleistocene to Holocene)
Rock types: gravel, boulders, and clay
Elevation: 20 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 Smelt Sands State Park

Conditions here are workable year-round, with typical highs from 53°F in winter to 64°F in summer.

Climate normals: NOAA 1991-2020 monthlies, YACHATS station (1 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

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 Smelt Sands State Park

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 Smelt Sands State Park.

Smelt Sands State Park FAQ

Where is Smelt Sands State Park?+

Smelt Sands State Park is in Lincoln County, Oregon, at 44.32253, -124.10611. Nearest road: Coolidge Lane.

What rocks and minerals can you find at Smelt Sands State Park?+

Smelt Sands State Park is reported to produce Agate, Jasper.

Is collecting allowed at Smelt Sands State Park?+

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 Smelt Sands State Park?+

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 Smelt Sands State Park?+

Smelt Sands State Park is workable year-round.

How do I get to Smelt Sands State Park?+

Open the directions link to navigate to 44.32253, -124.10611 in Google Maps. The nearest road is Coolidge Lane.

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Open Smelt Sands State Park on the map

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