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Most of the major towns are along—or not far from—the I–5 corridor, stretching from the capital city of Olympia, 60 miles south of Seattle, and on north to Bellingham, 90 miles north of Seattle and the last city of size before the Canadian border. Many of the cities along the route are ports on Puget Sound. There's even more waterfront out on the Kitsap Peninsula, which is sandwiched between this corridor and the Olympic Peninsula. Three other outlying areas include the western edge of the Skagit Valley, an important agricultural area; Snoqualmie, in the foothills of the Cascades east of Seattle via I–90; and the towns around Mt. Rainier and Mt. St. Helens, which are south of Seattle and just east of the I–5 corridor.