The highest peak in Arizona is situated in the glorious San Francisco Peaks in the 1.86-million-acre Coconino National Forest. Towering over the landscape at almost 13,000 feet is Humphreys Peak, the ...

The latest catalog expands the number of previously known Venusian volcanoes by a factor of 50. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.