No trip to Central Oregon would be complete without exploring one of the region's defining geological features: the vast expanses of hardened lava that diverted the Deschutes, formed mounds of gumdrop ...

FLAGSTAFF — Did you know Flagstaff is home to one of the largest lava tube caves in the country? The Lava River Cave in the Coconino National Forest stretches over a mile underground and was formed ...

The Lava River Cave exhaled chilled air. I put on my sweatshirt, despite the hot July day. Though I'd been warned about the sudden drop in temperature to a crisp 42 degrees, it was hard to believe I'd ...

It’s cloudy and warm today and other than that, there’s not much happening. So, in today’s weather blog we’ll take a break from the atmospheric stuff and talk some geography and geology. One of my ...

The vast interiors of a mysterious cave discovered beneath a home in Bend, Oregon have been unveiled in a new video shared with Newsweek. The walls of the lava tube—a cave formed from a volcanic ...

Sometimes, a hole in the ground is just a hole. Other times, it’s a portal to an underground cave spanning miles in width and length. You don’t really know what’s inside unless you dive into the void.

A large lava tube—a cave formed from a volcanic eruption—was discovered beneath a home in Bend in central Oregon. Back in 2017, realtors told Suzanne and James Brierley that there was a small cave ...

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 environments ...

Hawaii's lava shaped the islands, and it continues to shape the Big Island. It also left a captivating monument for a sense ...