John D. Duncan, III 应用

The Gettysburg Monuments Map is an interactivemapping program that will help new and experienced users alikenavigate the complex Gettysburg Battlefields. You may filter themonuments by state and type, with a variety of different maps asbackdrops. Included in the program is a high resolution 1921Library of Congress map, a clear and concise modern offline map,and both a tiled street map view (using OpenStreetMap data) and asatellite view (courtesy of MapQuest).