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1958 Map of East Portal, 1960 Print
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1958 Map of East Portal

USGS Topo · Published 1960

About this map

The Continental Divide dominates this high-altitude survey of the Front Range, where the legendary Rollins Pass route marks the rugged boundary between Grand Co and Boulder Co. This area represents a critical intersection of early Colorado transportation history, featuring the eastern entrance to the Moffat Tunnel at East Portal. While the modern Denver and Rio Grande Western line pierces through the mountains below, the map preserves the winding path of the Old Railroad Grade as it ascends toward the former settlement at Corona.

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Map Details

Date Portrayed1958
Date Published1960
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22.3 x 26.9 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