TRAIL MAPS & DATABASES
Located at the National Park Service web site, the "Trail Map" is an extremely sophisticated and helpful tool which shows the routes of the Historic Trail. The Trail Map is two (2) maps, one depicting and titled "Designated Routes," which are routes that have been designated by Congress as a part of the National Historic Trail, and one depicting and titled "Routes Under Study," which are routes that have not been added yet to the National Historic Trail. One can turn on and off different "layers" of the maps. It is a very extensive map database using Geographic Information Systems.