USGS National Flood Summary information from 1970-1998 April 27, 2006 by gisuser The U.S. Geological Survey has made the National Flood Summary information from 1970-1998, including maps and data, available on the World Wide Web. read more | digg story Related Posts:10 Favorite Things about the Living Atlas of the WorldIntroducing vMAP, a new GIS Program from HaibergMapping 15 years of land cover change in America