Siletz Bay Park - Taft Beach: Agate & Jasper Rockhounding in Lincoln County, Oregon

Plan your visit

Generally open to casual rockhounding

County

Lincoln County

State

Oregon

Nearest road

Oregon Coast Highway

Postcode

97367

Coordinates

44.92644, -124.01418

Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.

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.

Best time to visit Siletz Bay Park - Taft Beach

Comfortable months (45 to 90°F highs)

Conditions here are workable year-round, with typical highs from 49°F in winter to 71°F in summer.

Climate normals: NOAA 1991-2020 monthlies, OTIS 2 NE station (9 mi away).

Geology at Siletz Bay Park - Taft Beach

This spot sits on surficial deposits; Alluvial deposits, mapped as mixed fluvial sediment that formed within roughly the last 3 million years. Sedimentary beds like these are the typical host for petrified and silicified wood, which weathers out as durable float on slopes and in washes.

Mapped unit

surficial deposits; Alluvial deposits

Age

3 Ma to present (Quaternary)

Rock types

mixed fluvial sediment

Elevation

10 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.

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