Purchase a Portland Attractions Pass
Proposed Levy~Learn More!
OHS
/
Exhibits
/
Traveling Exhibits
/
Windows
/
Assembling Oregon
Assembling Oregon
Explore the Four Windows of Assembling Oregon
Click on the images below for more information on each window.
Oregon: 150 years of statehood 150 million years in the making!
The Assembly Continues: CASCADIA SUBDUCTION ZONE
Flowing Rock and Water COLUMBIA PLATEAU – COLUMBIA GORGE
Oregon Stretches Out BASIN AND RANGE PROVINCE
Windows
Assembling Oregon
Volcanoes of Oregon
Geological Resources
Geology and People
