Diablo Lake North Cascades National Park Washington
Diablo Lake North Cascades National Park Washington
Diablo Lake, nestled within Washington's North Cascades National Park, is a striking reservoir renowned for its vibrant turquoise waters. This distinctive hue results from glacial flour—fine rock particles produced by surrounding glaciers—that remains suspended in the water, reflecting sunlight and creating the lake's signature color. The lake was formed in 1930 following the construction of Diablo Dam along the Skagit River, serving as a key component of the Skagit River Hydroelectric Project managed by Seattle City Light.
Easily accessible via the North Cascades Highway (State Route 20), Diablo Lake offers visitors a range of recreational activities. The Diablo Lake Trail, a moderately challenging 7.6-mile roundtrip hike with an elevation gain of approximately 1,300 feet, provides hikers with panoramic views of the lake and surrounding peaks.
For those seeking a more relaxed experience, the Diablo Lake Overlook presents a convenient roadside stop with ample parking, restrooms, and interpretive signs detailing the area's geology and history.