Features:

• Seamless 1:100,000 scale USGS topographic maps
• Urban and rural road overlays that you can toggle on and off to update the USGS maps
• Built–in ability to export maps and profiles to your Palm Pilot or Pocket PC (Note: PC version only)
• Elevation profiling – draw a route and TOPO! generates a chart showing distance and elevation
• Enhanced shaded relief that can be toggled on or off
• GPS users can upload and download waypoints and routes
• Add your own notes, symbols, photos, and web links to the maps
• Select the exact area you need and print in landscape or portrait on any inkjet, laser printer, or plotter
• Choose from lat/lon or UTM grids
• Use the USA Place Finder to search over 1 million campsites, lakes, summits, and campgrounds
• Download custom map overlays and swap files with other TOPO! users on the National Geographic mapXchange website

System Requirements:

• Windows 95, 98, ME, 2000, XP, NT 4.0 and higher.
• Works with all color and black & white printers supported by these operating systems.
• 486 DX/66 MHz PC or higher
• 64 MB RAM
• 2X CD–ROM drive
• Monitor supporting thousands of colors
• Macintosh OS 10.2 or above.
• 350 MHz G3 or faster
• 128 MB RAM + 16 MB video memory
• Works with all color and black & white printers supported by OS 10.2 and higher.