1989 Map of Chester Morse Lake

About this map

Chester Morse Lake serves as a critical hydrological hub for the region, managed within a protected watershed boundary that separates municipal water resources from the public recreation lands of Olallie State Park. This landscape is defined by the dramatic descent of the Middle Fork Snoqualmie River and South Fork Snoqualmie River, which frame Sallal Prairie and the community of Tanner. The map details a transition from industrial and utility infrastructure—including numerous Gravel Pits, a prominent Transmission Line, and a Powerplant—to the steep, forested slopes of Grouse Ridge and Mount Washington. Local history is visible in the presence of Camp Waskowitz and the Horseshoe Mine, while the RR Grade tracing the river valley highlights the corridor's long-standing role as a primary transportation route through the Cascades.