Garmin TOPO! 2004 Great Lakes/Wisconsin/Michigan/Illinois/Indiana/Ohio Map microSD Card Provides detailed digital topographic maps, comparable to 1:24,000 scale USGS maps, for Wisconsin, Michigan, Illinois, Indiana, and Ohio Contains detailed hydrographic features, including, coastlines, lake and river shorelines, wetlands and perennial and seasonal streams Provides elevation profile on compatible Garmin devices so you can estimate terrain difficult Contains many routable trails, rural roads, city neighborhood roads, major highways and interstates Displays national, state and local parks, forests, conservation areas, wilderness ares, Bureau of Land Management (township, range, and section) information, and USGS quad locations