This image has been constructed by myself from data I digitized myself using public-domain USGS maps.
<h2><span class="mw-headline" id="Key">Key</span></h2>
<pre>   'BnO': 'saddlebrown',
   'BnM': 'limegreen',
   'DnH': 'blue',
   'DLnW': 'purple',
   'EL': 'Red',
   'LV': 'peru',
   'NYOW': 'khaki',
   'PSnN': 'palevioletred',
   'NYC': 'green',
   'NYNHnH': 'purple',
   'PRR': 'dodgerblue',
   'LIRR': 'dodgerblue',
   'Rutland': 'plum',
</pre>
    'small': 'orange',
The original uploader was <a href="https://en.wikipedia.org/wiki/User:RussNelson" class="extiw" title="wikipedia:User:RussNelson">RussNelson</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a>.
CC BY 2.5
Transferred from <span class="plainlinks"><a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></span> to Commons.