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Geologic sightseeing

Learn more about Oregon's geology


Coastal MountainsKlamath MountainsCascade MountainsWillamette ValleyHi Lava PlainsBasin & RangeOwyhee UplandsBlue MountainsDeschutes Ð Columbia plateau
Geologic Sightseeing

The Oregon landscape has been shaped by plate tectonics and millions of years of volcanic activity. Visitors who travel through the state will find many opportunities to examine the scenic geology and see and collect samples of minerals, rocks, and fossils. Oregon can be divided into the following 9 geologic provinces, each with outstanding geologic scenery.

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    Graphic by Elizabeth L. Orr, Geology of OregonCascade MountainsBasin & Range & Owyhee UplandsHigh Lava PlainsBasin & Range & Owyhee UplandsBlue MountainsWillamette ValleyDeschutes-Columbia plateauKlamath MountainsCoast Range

geologic plates
IMS-28 "Oregon: A Geologic History — 150 Years of Statehood, 150 Million Years in the Making" (IMS-28), by Ian P. Madin.50- x 58-inch wall map. News release | companion web site
Sparkslake
Sparks Lake in the central Oregon Cascades offers spectacular views in a quiet setting.

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Home | Publications Center | Hazards | Permits | Dept Info | Contact Us | Links | Search

Fossils, Minerals & Gems | Hazards | Field Offices | News and Events
Mineral Land Regulation and Reclamation | Oil, Gas and Geothermal
State of Oregon website | Job listings from the State of Oregon jobs page

Oregon Department of Geology and Mineral Industries
800 NE Oregon Street, Suite 965, Portland, OR 97232-2162
(971) 673-1555, FAX (971) 673-1562
email us at DOGAMI