The participants at the Yellowstone River catch fish during the National Trout Derby in Livingston, Montana.

National Trout Derby on the Yellowstone River in Livingston, Montana. Participants in the Childrens' event are seen seated at the bank of the Sacajawea lagoon. The three young boys fishing together in the second scene are Jack, Raymond, and Elroy Birkeland, and are holding fishing poles. Men in waders are fishing in the center of the river. A woman at the edge of the river tries to catch a fish. A boy holds up a fish he caught.. View of fish that were caught being weighed. The winner of the derby, with a 4lb fish, is Hank Fabian of Livingston.