Pupfishes live in the small spring-fed pools of the refuge. The entire range of one species, the Devil's Hole Pupfish (Cyprinodon diabolis) (right), is confined to one pool, similar in size to King's Pool, pictured at left.
USFWS Photos by Ryan Hagerty (left) and Olin Feuerbacher (right).
Ash Meadows National Wildlife Refuge
Ash Meadows National Wildlife Refuge is home to the Devil's Hole Pupfish, a fish with the smallest known range of any vertebrate species. The tiny oasis of water, no bigger than a farm pond, is the only place this fish can be found. Technically, Devil's Hole is a satellite part of Death Valley National Park, to maximize its protection, but it is surrounded by the Ash Meadows refuge.
Pete Rissler's video of the pupfish swimming in their native habitat.