...summit of this, was one of our signal-stations. By a series of tacks, now this way, now that, I urged my horse half-way up, fastened him there, and climbed on foot to the top. All the region around Chattanooga was visible from this eminence, and looking from it, one might get some idea of the immensity, the grandeur, the complication, and, at the same time, the simplicity, of the operations going on below....