...ga, with the south bank of the river picketed nearly to Bridgeport, his main force being fortified in Chattanooga Valley, at the foot of and on Missionary Ridge and Lookout Mountain, and a brigade in Lookout Valley . True, we held possession of the country north of the river, but it was from sixty to seventy miles over the most impracticable roads to army supplies. The artillery horses and mules had become...