Rockhounding in Pacific County, Washington

5 mapped rockhounding spots in Pacific County. Most commonly produces chalcedony, agate, agatized fossil shells, quartz.

Pacific County rockhounding photos

Representative spot and material photos from this county, shown where verified public image records are available.

1 photo

Fossil shells replaced by chalcedony, the kind of agatized shells found in the Willapa Hills — Willapa HillsPacific County, Washington

Minerals reported in Pacific County

Chalcedony4
Agate3
Agatized Fossil Shells2
Quartz2
Carnelian1
Jasper1

Standout in Pacific County

Hand-picked spot in Pacific County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.

Top pick
Willapa Hills
Public
Pacific County
The Washington Geological Survey documents light-gray to yellowish-gray chalcedony casts of fossil clams in the Willapa Hills, some holding trapped water that shifts when the specimen is turned, a feature collectors call enhydros. The surrounding marine sedimentary rocks yield abundant pelecypod, gastropod, and crab fossils. The agatized shells are a distinctive Pacific County specialty.
Agatized Fossil Shells

Spots in Pacific County

Spot	Minerals	Coordinates	Access
Green CreekGreen Creek Road	Agate Carnelian Chalcedony Jasper	46.5883, -123.6151	Public
LebamLebam Road	Agatized Fossil Shells Chalcedony	46.5635, -123.5648	Public
Long BeachDiscovery Trail	Agate Chalcedony Quartz	46.3608, -124.0643	Public
Ocean ParkBay to Ocean Trail	Agate Chalcedony Quartz	46.4924, -124.0587	Public
Willapa Hills	Agatized Fossil Shells	46.6670, -123.5019	Public

Neighboring counties in Washington

Adjacent rockhounding counties, ranked by how close their centroids sit to Pacific County. A natural extension if Pacific County is already on your trip plan.

Pacific County FAQ

Where can I rockhound in Pacific County, Washington?+

RockHoundR tracks 5 rockhounding spots in Pacific County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.

What rocks and minerals are common in Pacific County?+

Spots in Pacific County most often produce Chalcedony, Agate, Agatized Fossil Shells, Quartz, Carnelian. Individual spots can vary widely.

Are these Pacific County rockhounding spots on public land?+

Most spots in this list are tagged public, but access can change with seasons, claims, and local closures. Always verify before driving out — links in the app open the right BLM, USFS, or county pages.

Plan a Pacific County rockhounding trip

Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.