In this March 2, 2018 photo provided by the U.S. Fish and Wildlife Service, Battle Creek flows under the Wildcat Bridge near Manton, Calif. Approximately 29,000 endangered winter-run juvenile Chinook salmon were released into the North Fork of Battle Creek, a tributary of the Sacramento River. A $100 million project removing some dams and helping fish route around others is allowing wildlife officials to restore one of the state's most endangered native salmon to vital spring-fed Battle Creek, which springs from the cold northernmost reaches of the Sierra Nevada. Authorities say Battle Creek could prove a species-saving chill hideout against climate change and drought. (Steve Martarano/ U.S. Fish and Wildlife Service via AP)
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