 They remained on duty in western Virginia through the balance of the year, fighting in several small skirmishes and battles, including the battles of Rich Mountain and Cheat Mountain.In October, the 3rd OVI was shipped to Louisville, Kentucky, and served for the rest of the war in the Western Theater.After wintering near Elizabethtown, Kentucky, the regiment, then in the army of Ormsby Mitchel, was part of the general advance on Confederate-held Nashville, Tennessee, in February 1862.