Contains 97 digital images of volcanoes along the Aleutian arc in Alaska taken by Alaska Volcano Observatory scientists, other researchers, and private citizens which illustrate and document recent eruptive activity and the range of volcanic phenomena observed in Alaska. Disc contains Portable Document Format (PDF) files for viewing text and the photographs, as well as installers for Adobe Acrobat Reader 2.1 for both Macintosh and Windows. Each photograph is stored as a Kodak Photo CD ".PCD" image pac in five resolutions.

35-mm slides of images contained on this CD-ROM may also be obtained from USGS Photographic Library, Denver, CO 80225-0040.