Illinois Fishing

Auxiliary Reservoir

Auxiliary Reservoir provides productive fishing conditions for Largemouth Bass, Crappie, Catfish enthusiasts in eastern Illinois. Auxiliary Reservoir is located near eastern Illinois at coordinates 38.19, -89.06. The productive reservoir offers depth variation and structure that Largemouth Bass rely on. Local anglers frequently report success with Largemouth Bass, Crappie, Catfish at Auxiliary Reservoir.

Reservoir Illinois 38.1900, -89.0600
Updated 2026-04-29

Location

View on Google Maps 38.1900, -89.0600

Fishing Tips

  • Focus on primary points during sunset hours when Largemouth Bass are active.
  • Focus on main lake channel during late evening when Largemouth Bass are active.
  • Focus on submerged ridges during first light when Largemouth Bass are active.

Fishing Techniques for Auxiliary Reservoir

Seasonal patterns here follow typical Illinois trends: pre-spawn activity peaks in early spring, summer fishing is best during low-light periods, and fall brings aggressive feeding before winter. Each season favors different presentations, so adjust your tackle accordingly.

What to Expect at Auxiliary Reservoir

This reservoir offers a scenic Illinois 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

Current Illinois license mandatory. Illinois Department of Natural Resources maintains regulations on their website.

Fishing Tips for Auxiliary Reservoir

Frequently Asked Questions

Check with Illinois Department of Natural Resources for stocking schedules and seasons at Auxiliary Reservoir.

Auxiliary Reservoir is located in eastern Illinois, making it accessible from nearby population centers.

Fishing seasons vary by species. Check Illinois Department of Natural Resources for seasonal closures and regulations.