Big Bend in Lyman County: How and When to Fish It

• Overview

  In South Dakota, Big Bend falls inside Lyman County. It stands 1,407 feet above sea level. Start from Fort Thompson, 14 miles down the road. Chamberlain follows at 31 miles, then Pierre at 36 miles. Others worth noting: Lake Ambrose (12 miles), Lake Boehm out at 14 miles, Chapelle Lake (15 miles), Byre Lake out at 20 miles and Lake Chesley (23 miles). The county line is nowhere near, so one local authority covers the water.

• Where to Fish on Big Bend

  We hold no survey for this water; read the slope of the shoreline instead. On a natural lake the weed line and the shelf beyond it do the work. The productive water is a rod length or two out, not a hundred. Open biodiversity records for Lyman County list bluegill, largemouth bass and rudd. At least one recorded species is protected in parts of its range; read the local rules before targeting anything. On Big Bend the quiet end is the one worth the extra effort.

• Seasonal Patterns

  Between January at about 16°F and July at about 74°F, the water has a wide range to work through. Hard water is a season in its own right here. Firm cover through the cold months, then open water from early April. Break-up sits around early April on average, with the water closing again about early December. September and October fish steadily right up to the freeze. That shapes the year on Big Bend.

• Tackle & Baits

  Access status is simply unknown for this water. There is no mapped parking or launch nearby, which keeps numbers down. Largemouth respond to soft plastics tight to cover; go weedless where the growth is heavy. Rules for this water may differ from the county norm. Fishing rules and camping rules are set separately here. Lake Ambrose at 12 miles is the sensible second choice. Check the position at Big Bend before loading the car.