Swan Lake Fishing in Mason County, Illinois

• Overview

  Mason County in Illinois is where Swan Lake sits. The land about it is lake country bush. About 2.4 sq miles, so local knowledge or a boat saves a lot of walking. Shoreline length is close to 11 miles, and each section fishes a little differently. On our Mason County list it sits near the top for size. 10 miles away sits Astoria, the nearest town. Havana is 10 miles and Lewistown 15 miles. Being near a boundary, it pays to know which side you are fishing.

• Where to Fish on Swan Lake

  We hold no depth figure for this one. The productive water is a rod length or two out, not a hundred. The shallow end warms first and pulls fish in ahead of the rest. Fish documented in Mason County include common carp, goldfish, white perch, channel catfish and bluegill. The list covers the county rather than this water alone, so treat it as a guide. Swan Lake fishes better once you know its edges.

• Seasonal Patterns

  Long-run averages give July about 76°F and January about 24°F. Cold winters and warm summers give a wide working range. Hard cover is dependable here; it goes around mid March. Averages suggest open water from about mid March through to roughly late December. Fish feed hardest at the start and the close of the open season. Plan around that when you fish Swan Lake.

• Tackle & Baits

  Access is not recorded for this water. It formed naturally, so levels move with rainfall rather than with a gate. Nothing built is recorded close to the bank here. Bass water: a Texas-rigged worm near cover, a spinnerbait when you need to cover ground. Parking space is the usual limit rather than the bank itself. A polite question at the farm gate opens more banks than anything else. Moscow Lake at 0.9 miles is the sensible second choice. Where Swan Lake is concerned, a local answer beats a written one.