http://tags.library.upenn.edu/tag/maps+civil_war PennTags Feed http://tags.library.upenn.edu/makerecord/url/620 http://tags.library.upenn.edu/makerecord/url/620 "...interactive map of over 5,200 U.S. Civil War battlefields and historic sites. Get detailed descriptions of 384 major battlefields, and view the 25 sites most in danger of being lost."