Applies to: Colorado. GPS-compatible topographic maps for the entire state offer detail on backroads, recreation/camping areas, points of interest, and many hiking trails. This is great to have when vacationing or traveling in Colorado. New edition offers larger scale for urban areas along the Front Range. Scale varies from 1:160,000 (1"= 2.5 miles) to 1:320,000 (1"= 5 miles). 2011.