1862 map of the Suffolk Rail Road and the Metropolitan Rail Road, two horsecar systems in Boston
Unknown author<span style="display: none;">Unknown author</span>
<a rel="nofollow" class="external text" href="http://maps.bpl.org/id/12061">Skeleton plan, showing location of the Suffolk &amp; Metropolitan rail road routes in Boston</a> via the Norman B. Leventhal Map Center at Boston Public Library