Relief shown by contours and spot heights. Title from title screen (viewed Feb. 29, 2016). Also available online in PDF format from the U.S. Geological Survey Warehouse (http://pubs.er.usgs.gov/). "Prepared in cooperation with U.S. Department of Defense, Wright-Patterson Air Force Base." Contours show top of bedrock. Includes text, 2 location maps, diagram and table.