Mount Elden or Elden Mountain (Hopi: Hovi'itstuyqa) is located in central Coconino County northeast of Flagstaff, Arizona.
Is Mount Elden active?
Located in the south part of the San Francisco Volcanic Field, Flagstaff's horizon is layered with volcanoes. There is Humphrey's Peak, Mount Elden and Sunset Crater just to name a few. They have all been dormant with Sunset Crater last erupting nearly 1,000 years ago.
What type of volcano is Mount Elden?
Elden Mountain is a steep-sided lava dome in the San Francisco Volcanic Field. Lava domes are formed by dacite and rhyolite magmas, which have high silica contents. Dacite and rhyolite are so viscous that they tend to pile up and form very steep-sided bulbous masses (domes) at the site of eruption.