The Twelfth Army Group Situation Map collection provides interesting insights into U.S. Army operations in northwestern Europe during World War Two. The collection covers the time from the June 6th, 1944 Allied landings in Normandy to the Allied occupation in July 1945.
В т.ч. там лежат карты в mrsid формате разрешением примерно 6000*6000 пикселей.