Suggested citation and version history for Grand Canyon Monitoring and Research Center, 2008, USGS workshop on scientific aspects of a long-term experimental plan for Glen Canyon Dam, April 10-11, 2007, Flagstaff, Arizona: U.S. Geological Survey Open-File Report 2008-1153, 79 p. [http://pubs.usgs.gov/of/2008/1153/]. Version 1.0, April 30, 2008 Initial release online at http://pubs.usgs.gov/of/2008/1153/