... east of Lookout Mountain is Chattanooga Valley, so called after the creek of that name, and then comes, still further to the east Missionary Ridge. Each one of these mountain ranges abuts upon the Tennessee river . Missionary Ridge disappears in a series of kills a few miles below Chattanooga, only to reappear again under the name of Peavine Ridge, and again lower down under the name of Pigeon Mountain; the la...