South Dakota Fishing

Colwell Reservoir

Colwell Reservoir stands out as a legendary Reservoir in western South Dakota for serious Largemouth Bass, Crappie, Catfish fishing. Colwell Reservoir is located near western South Dakota at coordinates 42.99, -102.72. The legendary reservoir offers depth variation and structure that Largemouth Bass rely on. Local anglers frequently report success with Largemouth Bass, Crappie, Catfish at Colwell Reservoir.

Reservoir South Dakota 42.9900, -102.7200
Updated 2026-04-29

Location

View on Google Maps 42.9900, -102.7200

Target Species

Largemouth BassLargemouth BassCrappieCrappieCatfishCatfish

Fishing Tips

  • Focus on main lake channel during dusk when Largemouth Bass are active.
  • Focus on submerged ridges during sunset hours when Largemouth Bass are active.
  • Focus on main lake channel during dusk when Largemouth Bass are active.

Fishing Techniques for Colwell Reservoir

Local forage and water conditions dictate the best approach. Clear water calls for natural colors and lighter line; stained water favors chartreuse, white, and vibrating baits. Pay attention to water temperature — it drives fish positioning more than any other factor at this reservoir.

What to Expect at Colwell Reservoir

This reservoir offers a scenic South Dakota setting with water clarity that varies by season and recent weather. Amenities range from improved parking and facilities at some access points to more primitive launch areas. Check conditions before heading out, especially after heavy rain.

Regulations

A valid South Dakota fishing license is required. Check South Dakota Game, Fish and Parks for current regulations.

Fishing Tips for Colwell Reservoir

Isham Reservoir

Lundy Reservoir

Oglala Lake

Frequently Asked Questions

Fishing seasons vary by species. Check South Dakota Game, Fish and Parks for seasonal closures and regulations.

Public fishing at Colwell Reservoir requires only a valid fishing license. Boat rentals may be available locally.

Yes, Colwell Reservoir produces quality Largemouth Bass. Target structure for best chances.