Rockhounding in Lewis County, Washington

7 mapped rockhounding spots in Lewis County. Most commonly produces geode, carnelian, petrified wood, agate.

Lewis County rockhounding photos

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

1 photo

Carnelian, the red-orange chalcedony found in the gravels around Pe Ell — Pe EllLewis County, Washington

Minerals reported in Lewis County

Standout in Lewis County

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

Top pick
Pe Ell
Public
Lewis County
The Washington Geological Survey's gemstone report records that hundreds of pounds of agate have been taken between Adna and Pe Ell, in the heart of Lewis County's carnelian-agate country. Carnelian, the local red-orange chalcedony, occurs with agate, jasper, and dark petrified wood in the stream gravels. Most of the surrounding Willapa Hills is gated private timberland.
Agate, Carnelian, Chalcedony, Geode

Spots in Lewis County

Spot	Minerals	Coordinates	Access
CentraliaEast Carson Street	Agate Carnelian Chalcedony Geode Jasper Petrified Wood	46.7461, -122.9415	Public
DotyDoty Street	Agate Carnelian Chalcedony Geode Jasper Petrified Wood	46.6425, -123.2800	Public
Lucas CreekSenn Road	Agate Carnelian Chalcedony Geode Jasper Petrified Wood	46.6389, -122.7723	Public
McCoy Farm near AdnaCeres Hill Road	Carnelian Petrified Wood	46.6171, -123.1414	Public
Newaukum River gravelsTaylor Road South	Geode Nodules	46.6076, -122.8613	Public
Pe EllJones Road	Agate Carnelian Chalcedony Geode Jasper Petrified Wood	46.5737, -123.3035	Public
ToledoSaint Helens Street	Geode Nodules	46.4428, -122.8434	Public

Neighboring counties in Washington

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

Lewis County FAQ

Where can I rockhound in Lewis County, Washington?+

RockHoundR tracks 7 rockhounding spots in Lewis County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.

What rocks and minerals are common in Lewis County?+

Spots in Lewis County most often produce Geode, Carnelian, Petrified Wood, Agate, Chalcedony. Individual spots can vary widely.

Are these Lewis 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 Lewis County rockhounding trip

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