Most heavily fished during the spawning migration. Has one of the smallest native ranges of any trout species in North America. Native to the Upper Salt River and Little Colorado River drainages of Arizona. Currently listed as a threatened species. Has the most northerly range of any game fish in North America.
Range extends from Newfoundland to Alaska in the Arctic, Atlantic, and Pacific drainages.
Easily identifiable by its large dorsal fin. Native to the Arctic drainages from Hudson Bay to Alaska and northern Pacific drainages. Also found in the upper Missouri River drainages in Montana. Was native to Michigan, but disappeared from this portion of its range. Widely stocked outside its native waters.