Shop online at www.esri.com/shop for National Geographic's TOPO! software, which combines seamless map coverage of most U.S. states with easy-to-use mapping tools. Also available is National Geographic's TOPO! Image Support for ArcGIS extension, which allows users of ArcGIS to use data contained in the TOPO! products for GIS applications. Ten remaining states will be available soon.

Each TOPO! product includes State-wide coverage from scanned USGS 1:24,000 and 1:100,000 scale topographic maps and is GPS ready. They can be used to create routes and upload waypoints to a GPS. In addition, three-dimensional digital shaded relief can be toggled on and off.

National Geographic's TOPO! Image Support for ArcGIS extension lets TOPO! State Series basemap data be imported directly into an ArcGIS project. The extension compiles the scanned map data and quickly imports a seamless map into ArcGIS that exactly matches the project coverage area. During this process, the basemap is conveniently stored as a single layer or theme. The extension supports a broad range of projections and is compatible with ArcView 3.x and ArcGIS 8.1.

TOPO! products at www.esri.com/shop are priced at $99.95 each.