State Route 20 closed at Mile Post 134, Ross Dam
After a brief closure at Newhalem due to an avalanche and unstable conditions, SR 20 has re-opened to its normal winter closure point at MP 134, Ross Dam. The highway will remain closed from Ross Dam to MP 171 (Silver Star Creek) until spring re-opening. More »
Ross Dam Haul Road Closure Continues
A short segment of the Ross Dam Haul Road between the Diablo Lake suspension bridge and the tunnel remains closed to public use due to continued recovery following a March 2010 landslide. The closure will remain in effect through 2014. More »
Notice of planned work for the Cascade River Road, fall 2014
Visitors planning to access the park via the Cascade River Road after Labor Day should be advised that the Park Service is planning a fall closure of this road at Eldorado Creek (3 miles before the end of the road) in order to perform permanent repairs. More »
Rivers and Streams
In the heart of the forest, a hiker rests on a log stretched across a rushing stream. At water’s edge, a newly emerged dragonfly tests its wings in the chill air. Just below the tumbling surface, young salmon leave their rocky beds to make their way downstream in search of the sea. In a myriad of ways, flowing water is the lifeblood and defining element of the North Cascades.
These large rivers are fed by hundreds of streams with their origins in the steep mountains and glaciers. Late each summer these streams carry finely ground rock particles, or glacial flour, that cloud the water and lend a characteristic color. Local nicknames for the Skagit River include the Emerald Skagit and the Magic Skagit. The most dramatic contribution to this phenomenon is from Thunder Creek, which drains over fifty glaciers before flowing into the turquoise reflecting waters of Diablo Lake reservoir.
Did You Know?
The North Cascades are well known for the abundant waterfalls that lace the mountains. Two of the best known waterfalls are Gorge Falls between Newhalem and Diablo along State Route 20 and Rainbow Falls in the Stehekin Valley.