Kid -
Nice trout - It is a westslope cutthroat, the Washington strain is often called a twin Lakes cutthroat; that probably dropped down from one of the high mountain lakes or an alpine stream. The westslope is native to the westslope of the Rockies and eastern Cascades. Haven't seen them in the salt. There are a number of lakes in that basin that have these fish. The brood source of the fish is a alpine lake in Eastern Washington not too far from Lake Chelan; they have been planted in quite a number of lakes throughout the Washington Cascades. Have seen a few of these in Snohomish, Stillaguamish, Skagit and Nooksack systems.

They are an interesting fish in is not uncommon for them to get really heavy for their length. You can find some in the Yakima (especially upper river) and they are nearly always a much chunkier fish than the naitve rainbows. With our coastal cutthroat the rainbows are nearly always the heavier of the two but not so with the westslopes. They have been a problem in many high lakes as they seem to easily reproduce and tend to "stunt out".

Tight lines
Smalma