Arizona- Flagstaff Area Volcanics                 
Cochise College         

Virtual Geology Field Trips
Geology Home Page

Roger Weller, geology instructor   

wellerr@cochise.edu  copyright 2017-R.Weller

 
lava flow associated with S.P. Crater
Note the plume-like pattern of the lava flow and the sharp drop off at the
edges of the flow.