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1958 Map of East Portal, 1973 Print
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1958 Map of East Portal

USGS Topo · Published 1973

About this map

The Continental Divide serves as the central spine of this survey, marking the high-altitude boundary between the Arapaho National Forest to the west and the Roosevelt National Forest to the east. The landscape is defined by the legacy of high-mountain transit, anchored by the eastern entrance of the Moffat Tunnel at East Portal. Traces of earlier transportation methods are visible in the Old Railroad Grade winding near Riflesight Notch and the Rollins Pass (Site), once a critical crossing point for the railroad before the tunnel provided a direct subterranean route.

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Map Details

Date Portrayed1958
Date Published1973
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22.3 x 27 inches

Editions of this 1958 East Portal Map

Historical Maps of Diamond Lake Campground Through Time

181 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain