The Skagit River Watershed is the largest and most biologically important river system draining to Puget Sound, supplying roughly 30% of all its freshwater.
The mainstem, the Skagit River, spans 162 miles from its headwaters in British Columbia to its mouth at the Salish Sea. Stretches along three of its tributaries — the Sauk, Suiattle, and Cascade Rivers — are protected under the National Wild and Scenic Rivers system. Three dams owned by Seattle City Light, Ross, Diablo, and Gorge, are also located throughout the watershed.
The Skagit, Swinomish, and Sauk-Suiattle Tribes have called the Skagit River Watershed home for thousands of years, and their deep connection to this land and its resources continues to shape the region today.