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

Updated August 2026

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

Quick details

Access: Public area
County: Lincoln County
State: Oregon
Nearest road: Oregon Coast Highway
Postcode: 97376
Coordinates: 44.52143, -124.07322

Geology at Ona State Park

This spot sits on surficial deposits; Beach deposits, mapped as beach gravel, beach sand, and dune sand that formed within roughly the last 3 million years. Reworked sediments like these can carry fossils eroded from older beds upstream, typically as rolled bone fragments, teeth, and shell material.

Mapped unit: surficial deposits; Beach deposits
Age: 3 Ma to present (Quaternary)
Rock types: beach gravel, beach sand, and dune sand
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 Ona State Park

Conditions here are workable year-round, with typical highs from 51°F in winter to 64°F in summer.

Climate normals: NOAA 1991-2020 monthlies, NEWPORT 1 SE station (7 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 Ona 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 Ona State Park.

Ona State Park FAQ

Where is Ona State Park?+

Ona State Park is in Lincoln County, Oregon, at 44.52143, -124.07322. Nearest road: Oregon Coast Highway.

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

Ona State Park is reported to produce Agate, Jasper, Petrified Wood, Fossils.

Is collecting allowed at Ona 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 Ona State Park?+

A rock hammer, a cold chisel, safety glasses, and newspaper or foam for wrapping finds cover most fossil ground. A trowel and a sieve help in soft exposures.

When is the best time to visit Ona State Park?+

Ona State Park is workable year-round.

How do I get to Ona State Park?+

Open the directions link to navigate to 44.52143, -124.07322 in Google Maps. The nearest road is Oregon Coast Highway.

More rockhounding in Oregon

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Open Ona State Park on the map

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