<b>Caption</b>: Limited train on the Chicago, Lake Shore &amp; South Bend single-phase railway passing through the sand dunes at the foot of Lake Michigan
Unknown author<span style="display: none;">Unknown author</span>
(anon.):  “Carrying a Billion Passengers a Year in Chicago” <i><a href="//commons.wikimedia.org/wiki/Category:Electric_Railway_Journal" title="Category:Electric Railway Journal">Electric Railway Journal</a></i> <b>60: 13</b> (1922.09.23): p.419