Much of the Bluff Trail along lookout mountain today was part of the 1887 Narrow Gauge railroad. This railroad was a two mile ride from the point hotel over to a park by Sunset Rock. Certain spots had rock walls to prevent damage to the tracks, Learn more here: https://www.chattanoogan.com/2015/3/24/294939/Chattanooga-Railroad-Series-The-Narrow.aspx