A trout species (Oncorhynchus mykiss) native to cold Pacific waters in Asia and North America.
The Colorado River and its two major reservoirs, Mead and Powell, remain at historic lows amid record snowpack deficits and prolonged drought. Federal officials have proposed flexible, staged water cuts for the Lower Basin while keeping extra time for agreement among states. The development could affect millions who rely on the river for drinking water, agriculture, and power.