Oregon is home to some of the best examples of deep caves and ancient lava beds formed ages ago from the many volcanoes in ...

There are several volcanoes to explore in Oregon. Then head for its pristine lakes and explore a cave. Here are the Best Places to Visit in Oregon. Start in Portland See the Columbia River Gorge ...

For decades, the Oregon Caves National Monument and Preserve has been Oregon’s quietest national park site, a remote destination at the end of a long, winding road in the southwest corner of the ...

Through the intricate study of lava tubes—caves formed following volcanic eruptions when lava cools down—an international team of researchers has uncovered clues about Earth's ancient ...