Mode of access: Internet from the USGS website. Address as of 9/5/06: http://pubs.usgs.gov/sim/2005/2902/; current access via PURL.
Relief shown by contours and spot heights. Title from title screen (viewed on Sept. 5, 2006). Base extracted from USGS Digital Raster Image, revised 1994. Includes 2 col. cross-sections, index maps, correlation of map units, and text.