TopoFusion

TopoFusion is a Windows application that maps GPS data on Topo and Aerial maps for the United States. It was designed from the ground up to display Terraserver image data as quickly as possible. Other features include placement of digital photos using EXIF headers and advanced GPS track processing (trail networks, averaging, splining). TopoFusion supports all Garmin and Magellan GPS units.

TopoGrafix

Windows PC products for integrating GPS data with both maps and aerial photos. ExpertGPS lets you see GPS data plotted on topo maps and aerial photos side-by-side in Windows, or connect your GPS to your laptop to see where you are on the topo or photo. PanTerra is a database of 1.6 million US waypoints and waypoint data for all other countries, along with software tools to quickly find the waypoints you need. Low price, high capability.

TopoZone.com and TopoFactory

TopoFactory is the Web’s first subscription service that lets you create custom topographic maps and download them right to your desktop. You can make maps to your specifications any time and any place you need them. TopoFactory can make maps with full georeferencing information (world files) for use in mapping, CAD, and GIS software from ESRI, MapInfo, and others. TopoZone.com worked with the USGS to create the Web’s first interactive topo map of the entire United States and has every USGS 1:100,000, 1:63,360, 1:25,000, and 1:24,000 scale topographic map for the entire US.