Foldout map of the <a href="https://en.wikipedia.org/wiki/Southwestern_United_States" class="extiw" title="en:Southwestern United States">Southwestern United States</a> with territories and "Mail Route" of the <a href="https://en.wikipedia.org/wiki/Butterfield_Overland_Mail" class="extiw" title="en:Butterfield Overland Mail">Overland Mail Company</a> contracted for $600,000 per year in 1857.  Service began when the "first eastbound stagecoach departed San Francisco on September 15, 1858, and the westbound stagecoach left St. Louis a day later."  The "DAILY LINE, from St.Louis to Springfield, Mo." was through <a href="https://en.wikipedia.org/wiki/Tipton,_Missouri" class="extiw" title="en:Tipton, Missouri">en:Tipton, Missouri</a> until the <a href="//commons.wikimedia.org/w/index.php?title=Tbd&amp;action=edit&amp;redlink=1" class="new" title="Tbd (page does not exist)">tbd</a> railway was extended in 1859 along the preceding stage route to "<a rel="nofollow" class="external text" href="http://www.waymarking.com/waymarks/WM3A2F_Butterfield_Overland_Mail">The George Shackelford Relay and Meal Station"</a>  in <a href="https://en.wikipedia.org/wiki/Syracuse,_Missouri" class="extiw" title="en:Syracuse, Missouri">en:Syracuse, Missouri</a>.  The "southern route" through the 1854 <a href="//commons.wikimedia.org/w/index.php?title=Gadsden_Purchase&amp;action=edit&amp;redlink=1" class="new" title="Gadsden Purchase (page does not exist)">Gadsden Purchase</a> region was abandoned in 1861 for the central route through the <a href="https://en.wikipedia.org/wiki/Kansas_Territory" class="extiw" title="en:Kansas Territory">Kansas</a> and <a href="https://en.wikipedia.org/wiki/Utah_Territory" class="extiw" title="en:Utah Territory">Utah Territories</a> (former Pony Express Route, not shown).  
<p>ERRATA
</p>
<ul><li>The serpentine line indicating an overland route between Fort Smith and Little Rock was via an <a href="//commons.wikimedia.org/wiki/Arkansas_River" title="Arkansas River">Arkansas River</a> "SEMI-WEEKLY LINE of STEAMERS carrying mail, freight, and passengers".</li>
<li>Lake Tahoe (not labeled) is not depicted on the California/Utah territories' lines (later the California/Nevada state lines)</li>
<li>"Wasatch Mountains" is depicted as a much larger part of the Great Basin Divide, extending from the Utah Territory, into the New Mexico T, and ending in California's Mojave Desert</li>
<li>"Nicolette L" with the inflow "Nicolett Riv" having the same shape as the <a href="//commons.wikimedia.org/w/index.php?title=Spanish_Fork_River&amp;action=edit&amp;redlink=1" class="new" title="Spanish Fork River (page does not exist)">Spanish Fork River</a> (into <a href="//commons.wikimedia.org/w/index.php?title=Utah_Lake&amp;action=edit&amp;redlink=1" class="new" title="Utah Lake (page does not exist)">Utah Lake</a>) is shown near 114 degW rather than 111 deg W</li>
<li>"Sierra Madre</li></ul><p>NAMES
</p>
<ul><li>Features without labels: <a href="//commons.wikimedia.org/w/index.php?title=Sevier_Lake&amp;action=edit&amp;redlink=1" class="new" title="Sevier Lake (page does not exist)">Sevier Lake</a>/<a href="//commons.wikimedia.org/w/index.php?title=Sevier_River&amp;action=edit&amp;redlink=1" class="new" title="Sevier River (page does not exist)">Sevier River</a>,</li>
<li>Outdated names (current name displays in popup):  <a href="//commons.wikimedia.org/w/index.php?title=Upper_Colorado_River&amp;action=edit&amp;redlink=1" class="new" title="Upper Colorado River (page does not exist)">Grand Riv.</a>, <a href="//commons.wikimedia.org/wiki/Los_Angeles" title="Los Angeles">Los Angelos</a>, <a href="//commons.wikimedia.org/wiki/Colorado_River" title="Colorado River">Rio Colorado</a>/<a href="//commons.wikimedia.org/w/index.php?title=San_Joaquin_River&amp;action=edit&amp;redlink=1" class="new" title="San Joaquin River (page does not exist)">San Joaquin</a>/, <a href="//commons.wikimedia.org/wiki/Sacramento" title="Sacramento">Sacramento City</a>, <a href="//commons.wikimedia.org/w/index.php?title=Walker_Lake&amp;action=edit&amp;redlink=1" class="new" title="Walker Lake (page does not exist)">Walker's L.</a>, <a href="//commons.wikimedia.org/w/index.php?title=Firebaugh&amp;action=edit&amp;redlink=1" class="new" title="Firebaugh (page does not exist)">Firebaugh's Ferry</a></li></ul>
author produced map prior to 1923
<ul><li>19th Century cartography: "ENGR<sup>D</sup> BY SCHÖNBERG &amp; CO, 75 NASSAU ST. N.Y." (the Overland Mail Company's "Principal Office, in New York [was] at the <a href="//commons.wikimedia.org/w/index.php?title=American_Express_Building&amp;action=edit&amp;redlink=1" class="new" title="American Express Building (page does not exist)">American Express Building</a>, Hudson, Jay and Staple Streets".)</li>
<li>modern computerization (685 KB file timestamped 11/22/1985 8:56 AM) by <a href="//commons.wikimedia.org/w/index.php?title=National_Postal_Museum&amp;action=edit&amp;redlink=1" class="new" title="National Postal Museum (page does not exist)">National Postal Museum</a> from the c. 1858-9 handbook "printed by Hellier and Company Publishers" for "conducters, agents, drivers, and station managers" and, in addition to the foldout map, an "Almanac for 1859" and a "Through Time Schedule (No. 2, Jan 1859)".</li>
<li>blurry 102KB image: previously uploaded 16 June 2010 (original upload date) to en.wikipedia.org by <a href="https://en.wikipedia.org/wiki/User_Zeamays" class="extiw" title="en:User Zeamays">en:User Zeamays</a> from <a rel="nofollow" class="external free" href="http://www.postalmuseum.si.edu/museum/1d_Butterfield.html">http://www.postalmuseum.si.edu/museum/1d_Butterfield.html</a></li>
<li>legible 685 KB image: National Postal Museum file 1990_0564_1-MAP-02.JPG</li></ul>