Big Brown Trout in Colorado

Every year, Colorado Parks and Wildlife (CPW) fishery biologists set up a spawn-take operation for brown trout at North Delaney Butte Lake near Walden, CO. Biologists capture brown trout and collect more than a million eggs, which are shipped to CPW hatcheries. Once hatched and raised, the brown trout are restocked in waters throughout the state. North Delaney is the primary source of brown trout eggs in Colorado. Although they are non-native, brown trout are some of the most popular fish among anglers.

Learn more about CPW's fish hatcheries.