RockHoundR

Where to Find Jasper in Oregon

Oregon jasper is concentrated on the Owyhee plateau and along the Deschutes drainage, with secondary fields scattered across the southeast desert. Morrisonite, from the Owyhee River canyon, is among the most prized picture jaspers in the world, with brown, blue, and cream landscape patterns set in a hard chalcedony matrix. The Biggs jasper field east of The Dalles produces tan-brown picture jasper with dendritic inclusions, while Bruneau jasper from the Idaho-Oregon border slips into the same color family. Closer to Madras, the Priday and Richardson Ranch beds yield green and red jaspers alongside their thundereggs.

Spot list checked against source data on April 1, 2026.

Open the full map

Every jasper spot we track in Oregon

Standout jasper spots in Oregon

Hand-picked from the full list above, with the reason each one earns a trip.

Best counties for jasper in Oregon

Ranked by the number of mapped jasper spots. County links open the full rockhounding page for that county.

Before you go

Read the jasper identification guide so you know what a keeper looks like in the field: Jasper in the encyclopedia.

Jasper in Oregon FAQ

Where can you find jasper in Oregon?+
The mapped spots concentrate in Curry County, Lincoln County, and Malheur County. Known collecting areas include Owyhee River canyon (Morrisonite, Malheur County), Biggs jasper field (Sherman County), and Priday and Richardson Ranch (Jefferson County). Every spot on this page is on the map, and each spot's own page has its coordinates and access notes.
How many jasper spots are mapped in Oregon?+
117 spots across 24 counties. The RockHoundR app keeps the same spots on an offline map with public land overlays, geology layers, and your saved finds.
Is it legal to collect jasper in Oregon?+
Hand collecting of common rocks and minerals in small amounts for personal use is generally allowed on BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are closed to collecting. 58 of the 117 mapped spots here sit on land marked public, and 2 are fee-dig operations where you pay for access and keep what you find. Always confirm current rules with the managing agency before you dig.

Where else to find jasper

More minerals to hunt in Oregon

Hunt jasper 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.

Download on the App StoreGet it on Google Play