The salmon ladder at the Nimbus Fish Hatchery in Rancho Cordova will open Monday, Nov. 4, signaling the start of the spawning season on the American River. California Department of Fish and Wildlife hatchery workers will open the gates in the ladder at 10:30 a.m. and will take more than a half-million eggs during the … Continue reading Nimbus Hatchery fish ladder to open Nov. 4