Statistics for occurrence #1 of “South Mountain” in chapter 8.66 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War: Volume 2.:

...taff loss: Antietam, w, 1. Escort: 2d N. Y. Cav. (4 co's), Capt. John E. Naylor. first division, Brig.-Gen. Rufus King, Brig.-Gen. John P. Hatch (w), Brig.-Gen. Abner Doubleday. Staff loss: South Mountain , w, 1. First Brigade, Col. Walter Phelps, Jr.: 22d N. Y., Lieut.-Col. John McKie, Jr.; 24th N. Y., Capt. John D. O'Brian (w); 30th N. Y., Col. William M. Searing; 84th N. Y. (14th Militia), Maj. ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
South Mountain (Pennsylvania, United States) 79 2 1 0 0 user votes
South Mountain (Arizona, United States) 0 0 0 0 0 user votes
South Mountain (Arizona, United States) 0 0 0 0 0 user votes
South Mountain (Arizona, United States) 0 0 0 0 0 user votes
South Mountain (Arkansas, United States) 0 0 0 0 0 user votes
South Mountain (Arkansas, United States) 0 0 0 0 0 user votes
South Mountain (Arkansas, United States) 0 0 0 0 0 user votes
South Mountain (California, United States) 0 0 0 0 0 user votes
South Mountain (California, United States) 0 0 0 0 0 user votes
South Mountain (Colorado, United States) 0 0 0 0 0 user votes
South Mountain (Colorado, United States) 0 0 0 0 0 user votes
South Mountain (Connecticut, United States) 0 0 0 0 0 user votes
South Mountain (Idaho, United States) 0 0 0 0 0 user votes
South Mountain (Idaho, United States) 0 0 0 0 0 user votes
South Mountain (Maine, United States) 0 0 0 0 0 user votes
South Mountain (Maine, United States) 0 0 0 0 0 user votes
South Mountain (Maine, United States) 0 0 0 0 0 user votes
South Mountain (Massachusetts, United States) 0 0 0 0 0 user votes
South Mountain (Massachusetts, United States) 0 0 0 0 0 user votes
South Mountain (Massachusetts, United States) 0 0 0 0 0 user votes
South Mountain (New Hampshire, United States) 0 0 0 0 0 user votes
South Mountain (New Hampshire, United States) 0 0 0 0 0 user votes
South Mountain (New Mexico, United States) 0 0 0 0 0 user votes
South Mountain (New York, United States) 0 0 0 0 0 user votes
South Mountain (New York, United States) 0 0 0 0 0 user votes
South Mountain (New York, United States) 0 0 0 0 0 user votes
South Mountain (New York, United States) 0 0 0 0 0 user votes
South Mountain (New York, United States) 0 0 0 0 0 user votes
South Mountain (New York, United States) 0 0 0 0 0 user votes
South Mountain (New York, United States) 0 0 0 0 0 user votes
South Mountain (North Carolina, United States) 0 0 0 0 0 user votes
South Mountain (North Carolina, United States) 0 0 0 0 0 user votes
South Mountain (Oregon, United States) 0 0 0 0 0 user votes
South Mountain (Oregon, United States) 0 0 0 0 0 user votes
South Mountain (Pennsylvania, United States) 0 0 0 0 0 user votes
South Mountain (Pennsylvania, United States) 0 0 0 0 0 user votes
South Mountain (Pennsylvania, United States) 0 0 0 0 0 user votes
South Mountain (Texas, United States) 0 0 0 0 0 user votes
South Mountain (Texas, United States) 0 0 0 0 0 user votes
South Mountain (United States) 0 0 0 0 0 user votes
South Mountain (United States) 0 0 0 0 0 user votes
South Mountain (Utah, United States) 0 0 0 0 0 user votes
South Mountain (Utah, United States) 0 0 0 0 0 user votes
South Mountain (Utah, United States) 0 0 0 0 0 user votes
South Mountain (Utah, United States) 0 0 0 0 0 user votes
South Mountain (Utah, United States) 0 0 0 0 0 user votes
South Mountain (Utah, United States) 0 0 0 0 0 user votes
South Mountain (Vermont, United States) 0 0 0 0 0 user votes
South Mountain (Vermont, United States) 0 0 0 0 0 user votes
South Mountain (Washington, United States) 0 0 0 0 0 user votes
South Mountain (Wyoming, United States) 0 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.