During a 1902 expedition in the Mount Wrangell area the U. S. Geological Survey scientist W.C. Mendenhall observed plumes and ash-covered snow. This photograph showing an ash plume rising above the summit crater was probably taken during the summer of 1902. Ash darkens the snow over a wide area of the southern flanks. The small cone on the far-left horizon is Mount Zanetti.

Photo by W.C. Mendenhall, 1902 (U. S. Geological Survey).

This image is made available as a Public Domain Work, but proper attribution is appreciated.

Keywords: plume | ashfall | stratovolcano | ash plume | eruption | tephra

Wrangell