AVO/USGS geologist Kristi Wallace demonstrates the typical field conditions found while investigating tephra layers in bogs across Kruzof Island. Taken during fieldwork at Mount Edgecumbe, May 2024.
Credit: Image courtesy of the AVO/ADGGS.
Use Restriction: Please cite the photographer and the Alaska Volcano Observatory / Alaska Division of Geological & Geophysical Surveys when using this image. Full Resolution.