At just 1,300 years old, the Big Obsidian Flow is the youngest lava flow in Oregon. It covers about one square mile near the Newberry caldera – formed when the volcano's cone collapsed about ...

On the day of my Obsidian trip, I met the Lillegard family. They’d been hiking Oregon’s wilderness for 40 years yet didn’t know about the permit requirement the first time they came to Obsidian.

The Obsidian Trailhead provides access to the Pacific Crest Trail and to loop hikes of 10.6 and 15.8 miles that feature some of the most dramatic scenery in Oregon.

Here’s what the obsidian sourcing data shows: tools from the quarries in Oregon were traveling north. They were traded to native people in Washington, British Columbia, Alberta and Alaska.

The Obsidian Trailhead provides access to the Pacific Crest Trail and to loop hikes of 10.6 and 15.8 miles that feature some of the most dramatic scenery in Oregon.

In this episode of the Explore Oregon Podcast, outdoors editor Zach Urness and producer David Davis look at why a limited entry permit system is credited with saving Obsidian Trail, in the Three ...