Making Maps Under Fire During the Revolutionary War

I love maps. I love stories about maps. As a Sea Scout I fell in love with navigation and won trophies competing with adult navigators. I wall papered my BOQ room in Hawaii with a nine sheet world map (others laughed then stood for the longest time studying the detail). I was invited to teach land navigation at Fort Benning on graduation from Infantry OCS because I had taught the instructors some techniques they didn't know, but the Adjutant General Corps had other plans for me. One of my favorite books is The Mapmakers by John Noble Wilford. Imagine a mapmaker dressing like a monk to hide his mapmaking tools and then walking across Russia to map it (mapmakers were shot as spies in Czarist Russia - probably in Communist Russia too). I say this all as a prelude to my thanks for this link. That way you'll understand how heartfelt it is...