<p>On verso of image: Camp of NP engineers in the Cascade
</p><p>Mountains in 1886 during the construction of the Stampede
Tunnel. Opening of the tunnel in 1888 eliminated the
services of the switch backs by means of which trains were
</p>
previously able to cross the mountain range.<p class="mw-empty-elt"></p>
<ul><li>Subjects (LCSH): Northern Pacific Railroad Company; Surveying--Washington (State)--Cascade Mountains; Surveyors--Washington; (State)--Cascade Mountains; Tents--Washington; (State)--Cascade Mountains</li></ul>
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Unknown author<span style="display: none;">Unknown author</span></div>
<a rel="nofollow" class="external text" href="http://content.lib.washington.edu/indoccweb/index.html">Industries and Occupations Photographs Collection</a>