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1959 Map of Frank Island, 1960 Print
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1959 Map of Frank Island

USGS Topo · Published 1960

About this map

Yellowstone Lake dominates this mid-century survey, specifically focusing on the southern reaches where the South Arm and Southeast Arm penetrate deep into the high country. Centered on Frank Island, the map reveals a landscape defined by the Continental Divide, which separates the drainages of Yellowstone Lake from the southern basins like Heart Lake. The mapping reflects the operational infrastructure of the National Park during the late 1950s, recording essential backcountry outposts such as the Park Pt Patrol Cabin and the Heart Lake Patrol Cabin. Isolated features like Dot Island and the Molly Islands are clearly delineated alongside significant peaks like Flat Mtn and Channel Mtn. For the researcher, the map preserves the exact alignment of established routes including the Snake River Trail and Heart Lake Trail as they existed before modern developments or shifts in park management.

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Map Details

Date Portrayed1959
Date Published1960
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions16.2 x 20.7 inches

Editions of this 1959 Frank Island Map

Historical Maps of Park County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain