found: Work cat.: Snow along highway on Chinook Pass near Mount Rainier National Park, May 22, 1938, via the Lawrence Lindsley digital image collection, Feb. 15, 2006.
found: GNIS, Feb. 15, 2006(Chinook Pass, gap, Yakima and Pierce Co., Wash., 46⁰52ʹ19ʺN 121⁰30ʹ56ʺW)
found: Washington place names, via WWW, Feb. 15, 2006("Chinook Pass with an elevation 5,443 feet is at headwaters of the American River twenty miles south of Naches Pass between northwest Yakima and southeast Pierce counties. The pass is used as the main crossing of the Cascades between Snoqualmie pass on the north and White pass on the south, but is generally closed during the winter.")
