
The Snoqualmie River and its intricate network of sloughs, including Green Slough and Janicke Slough, define this river valley landscape at the base of the Cascades. By the early 1950s, with later updates in the 1970s, the area reflects a transition from early resource extraction to suburban fringe. The village of Fall City sits at the confluence of the river and Raging River, while the southern corridor follows the Burlington Northern tracks through High Point and Preston. Resource-based industry is evident in the presence of the Reynolds Mine and several gravel pits and prospects scattered across the ridges of Grand Ridge and Tiger Mtn. This map captures the evolving transport patterns of King County, showing the shift from rail sidings like the Fall City (Siding) on the Chicago Milwaukee St Paul and Pacific line to the expanding road networks near Upper Preston.
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