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1960 Map of Mount Si, 1966 Print
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1960 Map of Mount Si

USGS Topo · Published 1966

About this map

The South Fork Tolt Watershed and the Tolt Seattle Water Supply Res dominate the northern landscape of this survey, highlighting the critical infrastructure supporting Seattle's expansion in the 1960s. To the south, the terrain rises toward the iconic peaks of Mount Si and Mt Teneriffe, marking the transition into the Snoqualmie National Forest. The map documents a period of active resource extraction, evidenced by numerous mining operations like the Lennox Mines and Apex Mine tucked along the ridges of the Cascade foothills.

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Map Details

Date Portrayed1960
Date Published1966
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions17.1 x 20.9 inches

Editions of this 1960 Mount Si Map

Historical Maps of Ernies Grove Through Time

63 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain