Suggested citation and version history for Brantley, Steven R., McGimsey, Robert G., and Neal, Christina A., 2004, revised 2009, The Alaska Volcano Observatory; expanded monitoring of volcanoes yields results: U.S. Geological Survey Fact Sheet 2004- 3084, v. 1.1, 2 p. [http://pubs.usgs.gov/fs/2004/3084/]. Version 1.1, February 6, 2009 Updated some of the numerical data Version 1.0, August 13, 2004 Initial release online at http://pubs.usgs.gov/fs/2004/3084/