This subspecies of cutthroat trout survives today in tributary rivers of the Great Basin .
This subspecies of cutthroat trout has been reintroduced to Pyramid Lake and Walker Lake after being extirpated during the 20th century .
This subspecies of cutthroat trout survives today in tributary rivers of the Great Basin , and has been reintroduced to Pyramid Lake and Walker Lake after being extirpated during the 20th century .