This 3,004-ft. pass is at the crest of the Cascades at the head of the Snoqualmie River drainage to the west and the Yakima River drainage to the east, the highest point on I-90. Snoqualmie has the lowest altitude of the three main passes across the Cascades; and, in the days when travel was slower, it was the first night’s stop east of Puget Sound. Rainfall in this area is frequent in early and late summer; mists obscure the heights. Markers here indicate the boundary between the Wenatchee and Snoqualmie National forests.
After many surveys, the first wagon road was built through the pass by A. A. Denny and other settlers in 1865. Beginning in 1914 with permanent paving, many bridges and a considerable amount of construction, the road has been transformed into a modern freeway, kept open during the winter season for cross state travel and access to the ski resorts in the region of the pass. Snoqualmie Mountain is north of the pass, a 6,270-foot peak.