Berthoud Pass serves as the central high-altitude crossing on this mid-2010s survey, marking a critical divide between the Fraser River and the W Fork Clear Cr drainages. This portion of the Arapaho National Forest is defined by its recreation and infrastructure, featuring the extensive Winter Park Ski Area and Mary Jane Ski Area in the northeastern quadrant. The map records the intricate network of alpine trails including the Continental Divide National Scenic Trail and the Mount Nystrom Trail. Subterranean engineering is also visible through the Vasquez Tunnel and the August P Gumlick Tunnel, which facilitate water diversion across the Continental Divide. From the peaks of Vasquez Peak to the settlement at Berthoud Falls, the map documents a landscape where historic transit routes like Old Berthoud Pass meet modern industrial and recreational demands.
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This is the sole edition of this map. No revisions or reprints were ever made.
1903 · Georgetown
USGS Topo · 1:62,500
1905 · Central City
USGS Topo · 1:62,500
1905 · Georgetown
USGS Topo · 1:62,500
1910 · Central City
USGS Topo · 1:62,500
1912 · Central City
USGS Topo · 1:62,500
1924 · Montezuma
USGS Topo · 1:62,500
1924 · Fraser
USGS Topo · 1:62,500
1926 · Fraser
USGS Topo · 1:62,500
1926 · Montezuma
USGS Topo · 1:62,500
1933 · Montezuma
USGS Topo · 1:62,500