For the past 6 million years, volcanic activity has occurred episodically in the San Francisco volcanic field near Flagstaff, Arizona. More than 600 volcanic vents have formed there. The supermajority are small volume, basaltic cinder cones and associated lava flows emplaced during Strombolian eruptions. Other types of volcanic vents include endogenous and exogenous silicic domes, and a single stratovolcano - San Francisco Mountains; often referred to as the San Francisco Peaks. The image shown here is of Sunset Crater, the youngest of the field's volcanic vents.
We captured some of the field's highlights in our ' StoryMap. Have a look.
Touring the San Francisco Volcanic Field, northern Arizona - https://uagis.maps.arcgis.com/apps/MapSeries/index.html?appid=4bdb7afed5...