Image: MountMartin
Description: View of the summit crater of 1,863-m (6,112 ft)-high Mount Martin volcano, a largely ice-covered stratovolcano at the southern end of the Katmai group in Alaska. Note the sulfur (yellow) that has been deposited on the snow- and ice- covered crater walls.
Title: MountMartin
Credit: http://pubs.usgs.gov/dds/dds-40/
Author: C. Neal, U.S. Geological Survey
Permission: This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
The following page links to this image: