We have received several requests from organizations who want to add the Circuit trails to their GIS map data. While we have the ability to export the Circuit data it is not in a format that can be readily placed in most GIS mapping software programs. So we have released a GIS file that shows the current trails are officially designated as part of the Circuit.
GIS or Geographic Information System is computer mapping that is integrated with database technology. GIS files containing map data (i.e. roads) can be read by various GIS programs such as the popular ArcGIS family of software and the open source QGIS. If you just want to display the map data you can use a free GIS viewers such as web based Geocommons.com (shown above) or ArcGIS Explorer. More readily available though are the .kml and .kmz file which can be displayed on Google Maps or in Google Earth.