Arizona's highest point is near Flagstaff and provides scenic views. Here's what to know about the tallest mountain, including elevation and hiking.

Video footage captured by Scott Malis during the volcano's 11th episode shows lava spewing out of Kilauea volcano and ...

Scientists warn that Alaska’s Mount Spurr is showing signs of increased activity and could erupt in the coming weeks or months. An eruption could lead to widespread ashfall in Anchorage and ...

ANCHORAGE, Alaska (KTUU/Gray News) - A volcano in Alaska is ‘likely’ to erupt, according to experts. The Alaska Volcano Observatory said it has seen an increase in volcanic gas emissions from ...

Arizona is a state with many high mountain ranges and tall dormant volcanoes, including 12,637-foot Humphreys Peak near Flagstaff, the state's highest point. But the lowest point in Arizona is ...

The tallest volcano in Europe, Italy's Mount Etna, and the world's most active volcano, Kilauea in Hawaii, erupting again.

Scientists are on high alert after threat levels rose for three US volcanoes Thursday, suggesting eruptions may be imminent. The US Geological Survey (USGS) placed Alaska's Great Sitkin on ...

The Trump administration plans to shutter two National Park Service offices in Flagstaff later this year as part of ...