Placenames of the Civil War: Cities, Towns, Villages, Railroads Stations, Forts, Camps, Islands, Rivers, Creeks, Fords and Ferries by John D. Bennett (McFarland, 2012).
Title and subtitle pretty much tell you what you're going to get. The description mentions that around 1,600 entries are included. These are not categorized but rather listed together in a single alphabetized "gazetteer". The amount of information under each heading ranges from a sentence or two to several paragraphs, primarily mentioning origins, general location, and dates [generally by month rather than day(s)], names and events associated with the site. An appendix lists town populations from the 1860 census and another compiles a town list by state.