In fact, I'm reading a great book by Daniel Sutherland titled 'A Savage Conflict: The Decisive Role of Guerillas in the American Civil War.' It details various guerilla actions during the war, including an Atlanta native who formed a company of 'mounted riflemen' early in the war to protect the Georgia 'frontier.' Also, there were the Cherokee Rangers, who could be anywhere in Georgia or bordering counties in North Carolina or Tennessee with five hours' notice. However, the emphasis of all guerilla units was local defense. Georgia's various groups of partisan rangers needed to take care of farms and local affairs just as urgently as protect against Union influences from outside or within. Of the various Georgia groups I've read about so far, my favorite name is the Camden Chasseurs, who roamed the coast north of Florida for enemy small boats.
As you can guess, I live in the Atlanta area, in a little city named Smyrna, just down the road from Marietta and Kennesaw Mountain. During the Atlanta Campaign, this city saw some action on the 4th of July, both near the Smyrna campground that gave the city its name and Ruff's Mill, a small area on Nickajack Creek.