Version history for Yellowstone Volcano Observatory, 2006, Volcano and earthquake monitoring plan for the Yellowstone Volcano Observatory, 2006-2015: U.S. Geological Survey Scientific Investigations Report 2006-5276 [available on the World Wide Web at http://pubs.usgs.gov/sir/2006/5276/ ]. Version 1.0, November 2, 2006 Initial release online at http://pubs.usgs.gov/sir/2006/5276/