It's a river within a couple hours of Omaha. You'll need a canoe or a small boat . . . it's a really small stream. Most people think that it's too small for big fish.
I won't go any more specific than that because they really are like fish in a barrel. I'm afraid that people will catch them and keep them . . . and it takes a long time for them to get to 50+ pounds!
They'll be biting until it starts to ice up. Happy fishing!