Library of Congress uploads civil war maps

These are pretty amazing. While growing up and living in the DC, MD, VA area I've visited a few historic civil war battlegrounds and the energy at these places is buzzing. The land has been preserved just as it was back in the day and if you close your eyes you can almost feel what it was like being there. Anyway, to get great detail on the maps download the MrSID version of the map you choose (at the bottom of the page of each map) and then download the MrSID viewer (downloadable here) to be able to see the finest creases in the paper. WOW! Once you view the map in the MrSID application you can create .tif images of portions of the map.