America’s Most Up-to-Date, Feature-Rich Topographic Software. In addition to DeLorme’s up-to-date terrain, road, and points of interest detail, Topo USA provides access to downloadable aerial imagery, NOAA nautical charts, and authentic USGS 1:24,000 quad maps. Integrate your data downloads with Topo USA 8.0 on your PC for unrivaled planning, routing and navigating. Unlike online map and imagery sources, DeLorme data downloads can be integrated with Topo USA 8.0 maps. Use the split screen editing capability to identify and mark structures, landmarks, navigation markers, new roads and trails, and other features with pinpoint GPS accuracy. Topo USA also enables realistic 3-D terrain views with flyovers, as well as the unique ability to create routes automatically over both roads and trails. The rich level of detail includes land use, land cover, public lands (e.g., BLM, national and state parks and forests), and more than 4 million places of interest.