Thompson Lake in Mecosta County: How and When to Fish It

• Overview

  You will find Thompson Lake in Mecosta County, Michigan. It sits in rolling bush. It covers about 7 acres, so this is small water you can walk round in under an hour. On size it sits at the modest end of our Mecosta County list. You are 6.3 miles from Lake Isabella. Further out sit Canadian Lakes (10 miles) and Lakeview (16 miles). A county boundary sits nearby, which can matter for local access rules.

• Where to Fish on Thompson Lake

  No chart reached our records; the first cast is your sounding. The productive water is a rod length or two out, not a hundred. Look for the band where the shallows give up and the bottom falls away. Public occurrence data for Mecosta County names bluegill, largemouth bass and rock bass. Records at county level tell you what is around, not what is stocked here. Work Thompson Lake in sections rather than trying to cover it.

• Seasonal Patterns

  The range across the year is 19°F to 69°F. Winter shuts the surface down for months. The lid usually goes in early April, which opens the strongest weeks of the year. Average temperatures cross freezing around early April in spring and again near mid December in autumn. Fishing peaks soon after break-up and again before the cold returns. The season on Thompson Lake follows the weather closely.

• Tackle & Baits

  Nothing we hold confirms whether access is permitted. We find no slipway, car park or made path within a short radius, so treat access as rough. A small crankbait along the drop and a worm in the thick stuff cover the bass. Where access is informal, keep it that way by behaving. Close seasons apply to some species and not others. Grassy Lake sits 0.2 miles off and takes the overflow. Confirm before you fish Thompson Lake.