The Old Caves Crater Trail is one of the best hikes in Arizona for exploring caves built by the region's earliest inhabitants ...

A series of long-planned enhancements to Snow Canyon State Park is nearing completion to improve visitor flow and reduce congestion in one of Utah’s most popular outdoor destinations.

My family stayed in Stromboli, an island off the north of Sicily. My kids loved playing with black sand and watching the ...

As the growing tide of travelers strains housing, water and hot spots, protests and measures to lessen the effects of ...

Essentially, gas pistoning is a shallow, degassing-driven rise and fall of a lava surface. Often these pistons occur in ...

Students participating in the Public Library’s summer reading program enjoyed painting volcanoes and watching the simulated eruptions Wednesday. This week, second through fifth grade students painted ...

The landscape is stark, dark and dramatic, formed by a series of eruptions in the last 16,000 years that have stacked layer ...

Nahuku Thurston Lava Tube in Hawaii Volcanoes National Park is one of the most amazing natural wonders you can visit and ...

If you’ve been following the ongoing episodic summit eruption of Kīlauea volcano on the Big Island, you might have seen the ...

This chain of volcanic islands spanning 1,500 miles of the Pacific Ocean is an ecological wonder. Those who call Hawai‘i home ...

A project by Icelandic firm s.ap arkitektar envisions the year 2150, when buildings and cities made from lava could be a ...

Deep below the surface of the ocean, bacteria and critters that feed off nutrients spouting from hydrothermal vents met with ...