Heads up in British Columbia where it is considered one of the best trout streams in the province before it drops down into Whatcom county, Washington. Ross Dam impounds a great body of water called Ross Lake and below that are two other dams, the Diablo and Gorge, above Newhalem.
You can go by road from Marblemount up to Newhalem. The Diablo Dam has created a lake of considerable area, pushing the water up Thunder Creek and the Skagit River proper. There are some tremendous rainbows and cutthroats at the head of the lake; anyone going into this region should, by all means, fish it. A boat operating on the lake contacts its upper waters.
The Ruby Creek area is another excellent fishing location; in fact, the whole upper region of the Skagit affords the best all-around fishing in Washington. Much of this country can be fished only by hiking or by the pack and saddle horse route. Information regarding same can be obtained at Newhalem.
The lower part of Skagit River receives a considerable amount of water from northeast Whatcom county plus all the water that comes from Skagit county. Sauk River, Suiattle River, the Cascade, Baker River, and other streams help to make this one of the choice northern streams of Washington. Highway 17 parallels the Skagit from Lyman to Marblemount, hence, accommodations and places to fish are quite numerous.
The lower Skagit is rather turbulent early in the season, so the early summer fishing is of little consequence. The best fishing occurs from July 15 on. In the fall, your best fishing is for chinook, silver salmon, and ocean-run cutthroats, numbers of which come up this stream.
Possibly some of the best trout fishing on the lower Skagit is to be had 30 miles up from the mouth. Steelhead trout fishing is excellent from December 15 to April 20. There are operators who specialize in float trips down the Skagit, located in the small towns on Highway 17 from Mount Vernon up to Concrete, at the foot of Lake Shannon.