Illinois State Geological Survey, Prairie Research Institute
Abstract
"North American Datum of 1983 (NSRS2007), North American Vertical Datum of 1988. Vector base data from 2013 TIGER/Line Shapefiles provided by the United States Census Bureau."/ Includes location map, text, 1 illustration, and 3 ancillary maps with descriptive notes./ Relief shown by gradient tints./ Includes bibliographical references./ Scale 1:62,5002008 LiDAR data for Whiteside County, Illinois, made available through the the Illinois Height Modernization ProgramOpe