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 ...

NEAR FLAGSTAFF, Ariz. (FOX 10) --There are many popular hiking trails in and around Flagstaff. One of those trails, completely underground, is considered a volcanic wonder. Just west of Snowbowl, ...

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 ...

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 ...

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 ...

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.

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 ...

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 ...

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

With its iconic mountains, rivers, and coastline, it’s easy to overlook the adventure of discovering some of Oregon’s underground wonders. Oregon is home to some of the best examples of deep caves and ...