Not a transit diagram for public use, but a track layout of the system for operational planning. The original post on Flickr dates it between 1929-1934, based on visible names.
Source: Forest Pines/Flickr
Not a transit diagram for public use, but a track layout of the system for operational planning. The original post on Flickr dates it between 1929-1934, based on visible names.
Source: Forest Pines/Flickr