Oregon's state rock is celebrating its 60th anniversary this year. Here's everything to know about the thunderegg and where ...

The volcanic fissure in remote southeast Oregon features a unique hiking and scrambling experience unlike anything else in the state.

In this paper the writer makes contributions to the geology of that little-known region of southeastern Oregon in which Steens Mountain and the Pueblo Mountains are situated, and which was discussed ...

Eight years after the Eagle Creek Fire scorched nearly 50,000 acres in the Columbia River Gorge, a new analysis shows the ...

Three homes in Eugene’s Moon Mountain neighborhood have been condemned after the ground beneath them began to shift, forcing ...

Structural and petrologic development of the Baker terrane, Blue Mountains, NE Oregon. Crustal growth along the southern margin of Laurentia, Sierra Madre, Wyoming, and Park Range, Colorado. Tectonic ...