Location with Flathead catfish

Caught a few years ago but a memorable one68.1 lbs on a goldfish overnight.

On the map
to map
Date
2018-03-27
Coordinates
40.76696, -96.84984
Address
Nebraska, Lancaster County
Cities
Lincoln, Waverly, Hickman, Bennet, Firth, Malcolm, Denton, Roca, Raymond, Davey
Fish
Flathead catfish