Daniel Dzurisin Richard G. LaHusen Jon J. Major Dennis Lapcewich Elliot T. Endo Daniel J. Gooding Steve P. Schilling Christine G. Janda David R. Sherrod William E. Scott Peter H. Stauffer Michael P. Poland 2008 Images from a Web-based camera (Webcam) located 8 km north of Mount St. Helens and a network of remote, telemetered digital cameras were used to observe eruptive activity at the volcano between October 2004 and February 2006. The cameras offered the advantages of low cost, low power, flexibility in deployment, and high spatial and temporal resolution. Images obtained from the cameras provided important insights into several aspects of dome extrusion, including rockfalls, lava extrusion rates, and explosive activity. Images from the remote, telemetered digital cameras were assembled into time-lapse animations of dome extrusion that supported monitoring, research, and outreach efforts. The wide-ranging utility of remote camera imagery should motivate additional work, especially to develop the three-dimensional quantitative capabilities of terrestrial camera networks. application/pdf 10.3133/pp175011 en U.S. Geological Survey Remote camera observations of lava dome growth at Mount St. Helens, Washington, October 2004 to February 2006 reports