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1958 Map of Iliamna D-2, 1961 Print
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1958 Map of Iliamna D-2

USGS Topo · Published 1961

About this map

Chigmit Mountains dominate this 1958 survey, where the drainages of several major water systems converge toward the Cook Inlet coast. The map illustrates a complex glaciated landscape, specifically highlighting Roscoe Glacier and the sharp elevation of Roscoe Peak and Sugarloaf Mountain. This era of mapping was based on 1957 aerial photography and reveals a territory defined by its watercourses, including the Pile River and the Iliamna River. The southern portion of the sheet focuses on the tidal environment of Iniskin Bay, where the Iniskin River empties into extensive Mud flats. The presence of Three Sisters Mountain further emphasizes the verticality of this coastal range. This map is a significant record of the region's hydrography before later changes in glacial extent and coastal morphology.

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Map Details

Date Portrayed1958
Date Published1961
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions17 x 20.8 inches

Editions of this 1958 Iliamna D-2 Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain