Resolution: 1/2 - Click the region of interest for enlargement.
Image rights
"Arching fountain of a Pahoehoe" Author J.D. Griggs. Created 10 September 2007. Uploaded 1 May 2008. Accessed through WikiCommons. This image is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of Interior.