Garmin MapSource U.S.A. Topographical Map CD-ROM (Windows) Similar to U.S. Geological Survey 1:100,000-scale topographic paper maps View highways, roads, hiking trails, snowmobile trails, backwoods trails, and shoreline detail Icons represent boat ramps, campgrounds, public facilities, swimming, and ski areas Transfer waypoints, routes, and tracks between your PC and nearly all Garmin GPS units See Product Description for compatible Garmin products