Where to Find Chalcedony in Oregon
Oregon chalcedony is famous for the Holley blue agate of Linn County, a translucent gray-blue chalcedony from the Holley pegmatite area east of Lebanon. The Lakeview region in Lake County yields pink and apricot chalcedony rosettes in basalt, and the Owyhee plateau on the Oregon-Idaho border produces the heavy blue chalcedony nodules that hold the famous Owyhee blue agate banding. Coast pebbles from Agate Beach to Coos Bay add tide-worn carnelian and white chalcedony. Most inland chalcedony is float on rhyolite or basalt slope wash, and the better material concentrates in dry washes after spring rains.
Spot list checked against source data on April 1, 2026.
Map of 22 chalcedony collecting spots in Oregon
Standout chalcedony spots in Oregon
Hand-picked from the full list below, with the reason each one earns a trip.
Agate Beach
Lincoln County County
Agate Beach is named for the agates found along the Newport and Yaquina Head shoreline, and Oregon Sea Grant notes that winter storms expose the gravel beds that supply beach agates. The site stands out because Oregon ocean-shore rules allow small noncommercial collection of agates and other nonliving natural products, making the access as important as the material.
Beach Area Yachats
Lincoln County County
The Yachats beach area sits on Oregon's central coast, where storm-reworked gravel can expose agate, chalcedony, jasper, and related beach material. Its strength is broad legal ocean-shore access for small noncommercial collecting, paired with a shoreline that is repeatedly refreshed by Pacific winter wave action.
Succor Creek General Area
Malheur County County
Succor Creek is a remote canyon locality where Oregon State Parks identifies a haven for rock hounds and DOGAMI lists agate, jasper, and related chalcedony-family material from the area. Its standout quality is the combination of high-desert volcanic scenery and collectible silica materials, including jasper, chalcedony, chert, and opalized wood.
Best counties for chalcedony in Oregon
Ranked by the number of mapped chalcedony spots. County links open the full rockhounding page for that county.
Every chalcedony spot we track in Oregon
Sorted by county. Coordinates open in Google Maps.
Before you go
Read the chalcedony identification guide so you know what a keeper looks like in the field: Chalcedony in the encyclopedia.
Chalcedony in Oregon FAQ
Where can you find chalcedony in Oregon?+
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Where else to find chalcedony
More minerals to hunt in Oregon
Hunt chalcedony in Oregon with the map in your pocket
RockHoundR puts these spots on an offline map with BLM and Forest Service overlays, geology layers, and a log for your finds.
