Upper Big Nemaha Reservoir 20-B Fishing in Lancaster County, Nebraska

• Overview

  In Nebraska, Upper Big Nemaha Reservoir 20-B falls inside Lancaster County. It sits at 1,260 feet above sea level. The water measures roughly 11 acres, so nothing here is far from anything else. It lies lower than most water we list in Nebraska. Hickman sits 12 miles from here and is the nearest stop. For a city, Lincoln is 23 miles off. Two sets of local rules meet not far from this water.

• Where to Fish on Upper Big Nemaha Reservoir 20-B

  There is no recorded depth, so work from what you can see. Look for where the old bank line still shows under the surface. Held water runs deepest at the wall and shallows back to the inflow. Public occurrence data for Lancaster County names green sunfish, common carp, flathead catfish and bluegill. The list covers the county rather than this water alone, so treat it as a guide. This water fishes better once you know its edges.

• Seasonal Patterns

  Climate records put July near 77°F and January near 23°F. Spring and autumn carry the fishing; summer and winter test it. Once it clears, about mid March, the fishing comes on quickly. Break-up near mid March, freeze-up near mid December: that is the shape of an average year. Right after break-up, and again as the nights sharpen, is when to go. It sets the rhythm of the year at this water.

• Tackle & Baits

  The paperwork position is blank for this one. Mapping shows no built access close by; expect to walk in from wherever you can leave the car. For the catfish, fish bottom baits into the deeper holes and let them sit. Rules differ from one water to the next round here. Close seasons apply to some species and not others. Should this one be busy, Upper Big Nemaha Reservoir J-12a is 1.7 miles off. Nothing here settles the position at this water for certain.