Portion of a long tephra section on the east low flank of Cleveland. Prominent light colored unit is the informally named 'Neopolitan ash'. 14CLCN011. Photo taken during the 2014 field season of the Islands of Four Mountains multidisciplinary project, work funded by the National Science Foundation, the USGS/AVO, and the Keck Geology Consortium.
Image courtesy of AVO/USGS.