A c.1870 map of a plan for the <a href="https://en.wikipedia.org/wiki/Nicaragua_Canal" class="extiw" title="en:Nicaragua Canal">Nicaragua Canal</a>, drawn up by Julius Bien &amp; Company. The map follows the southern route proposal.
Julius Bien &amp; Company
<a rel="nofollow" class="external text" href="http://rightsideguide.com/the-great-nicaragua-canal/">The Great Interoceanic Nicaragua Canal</a>