Statistics for occurrence #1 of “South Mountain” in chapter 8.63 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War: Volume 2.:

...he Federals speak of the battle of Pea Ridge, of the Ozark range of mountains, and the Confederates call it after Elk Horn, a country inn. The Union soldiers called the bloody battle three days after South Mountain from the little stream, Antietam, and the Southern troops named it after the village of Sharpsburg. Many instances might be given of this double naming by the opposing forces. According to the sa...
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.