Timeline of Arizona’s Recent Volcanoes (Patreon)

Arizona, my home state, contains 2 active volcanoes (Uinkaret and San Francisco volcanic fields). Yet, if you were to have gone back 2 million years, we would have witnessed 6 active fields. I made this graphic to provide a timeline of volcanism at Arizona’s recently active fields. Any questions? Do you want a dedicated video on one of these volcanic fields? Be sure to let me know!