Loading map...

1989 Map of Mount Si

Name: 1989 Topographic Map of Mount Si
Creator: U.S. Geological Survey
Published: 1989
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1989

About this map

Ernies Grove sits at the edge of a landscape defined by significant elevation changes and high-altitude water bodies in the late 1980s. The North Fork Snoqualmie River carves through the center of the sheet, dividing the terrain between prominent peaks like Fuller Mountain and Mount Si. To the east, the Snoqualmie National Forest encompasses a series of alpine lakes, including Calligan Lake, Lake Hancock, and Lake Moolock.

Resource extraction is evident through the numerous Borrow Pits and a Quarry scattered across the slopes, indicating active land management or road construction within the forest boundaries. The map tracks the winding paths of Hancock Creek and Calligan Creek, illustrating the complex drainage patterns of the Cascade foothills. Notable landmarks such as Mount Tenerife and Green Mountain provide clear points of reference for those studying the physical geography of King County during this era.