Brenton Slough in Dallas County: How and When to Fish It

• Overview

  Out in Dallas County, Iowa, sits Brenton Slough. It stands 843 feet above sea level. At about 62 acres, a day is enough to walk the shoreline properly. For a base, Grimes sits 2.6 miles out. The nearest city of size is Des Moines, 13 miles away. Water in the same corner: Saylorville Lake just 4 miles, Big Creek Lake out at 7 miles, Lake Halice just 8.1 miles, Sugar Creek Lake out at 12 miles and Grays Lake just 14 miles. The boundary is near enough that local access rules are worth double-checking.

• Where to Fish on Brenton Slough

  No chart reached our records; the first cast is your sounding. Bays and points beat straight shoreline every time on water like this. This is a lake, so the margins and the first drop matter most. Across Dallas County, recorded fish include bluegill, channel catfish and pumpkinseed. Records at county level tell you what is around, not what is stocked here. On Brenton Slough that means starting tight and working out.

• Seasonal Patterns

  Averages here run 75°F at the top of summer and 19°F at the bottom of winter. Four clear seasons, with a proper winter at one end. Winter locks it down, and late March brings it back. Average temperatures cross freezing around late March in spring and again near mid December in autumn. Look to early summer and the first cool weeks of autumn. On Brenton Slough that shapes the whole year.

• Tackle & Baits

  The rules here are undocumented as far as public sources go. Mapping shows no built access close by; expect to walk in from wherever you can leave the car. A small crankbait along the drop and a worm in the thick stuff cover the bass. Where access is informal, keep it that way by behaving. Signs go up and come down, so check on the day. The nearest alternative is Saylorville Lake, 4 miles out. None of that is settled for Brenton Slough in what we hold.