The Gulkana River watershed, which includes many clearwater lakes and streams, has one of Alaska's most productive and popular grayling fisheries..., according to Alaska Fishing. Accessible by highway, airplane, boat, and foot trails, the Gulkana system supports large populations of king and red salmon, rainbow trout, and lake trout as well as Arctic grayling. The river flows through wild country affording views of the Wrangell Mountains. Visitor services are available along the Richardson Highway.