Brock Lake Fishing in Tazewell County, Illinois

• Overview

  Brock Lake is set in Tazewell County, Illinois. This is pine and birch country. The water measures roughly 8 acres, so nothing here is far from anything else. The closest town, Mackinaw, is 1.2 miles distant. The nearest city of size is Peoria, 16 miles away. The county line is nowhere near, so one local authority covers the water.

• Where to Fish on Brock Lake

  No chart reached our records; the first cast is your sounding. A soft bed grows weed late into autumn, which keeps fish shallow. Where the bottom changes texture, fish gather; find that line. Records held for Tazewell County cover common carp, white perch and goldfish. The list covers the county rather than this water alone, so treat it as a guide. On Brock Lake the obvious spot is not always the productive one.

• Seasonal Patterns

  Averages move between 23°F in January and 75°F in July. Hard water is a season in its own right here. Count the season from break-up, usually mid March. The season between ice runs from about mid March to late December. Late spring and early autumn carry the year between them. Keep it in mind when planning a trip to Brock Lake.

• Tackle & Baits

  Whether the bank is open is not something our records settle. No car park, ramp or path is recorded within easy reach of the shore. Largemouth respond to soft plastics tight to cover; go weedless where the growth is heavy. Check whether a boat is allowed before you tow one. Night access is frequently treated as a separate matter. Mitchell Lake at 2.4 miles is the sensible second choice. Check the position on Brock Lake before loading the car.