...rmined to approach Mobile on the east, where he would have the full benefit of the cooperation of the navy, and the principal works he would have to reduce were Spanish Fort commanding the mouth, and Blakely commanding the head of the Appalachee, where the Tensas leaves it. The movement was made in two columns: one from Dauphine Island, under Canby himself, the other from Pensacola, under Major-Gener...