Fishing at Gastmeier Lake, Thunder Bay District, Ontario

• Overview

  Gastmeier Lake falls in Thunder Bay District, part of Ontario. Elevation runs to 409 metres. This is sizeable water at about 1.88 sq km, and a boat opens up most of it. Some 21 km of bank gives room to move when the wind turns. On our Thunder Bay District list it sits near the top for size. For supplies, Sioux Lookout is 147 km out. It is 207 km to Thunder Bay, the nearest city. No boundary runs near, so the local rules hold throughout.

• Where to Fish on Gastmeier Lake

  The records we hold are silent on depth, so plan to find it yourself. Read the surface for the wind lane, then fish the edge of it. This is a lake, so the margins and the first drop matter most. Across Thunder Bay District, recorded fish include cisco, blackfin cisco and rainbow smelt. County data is a starting point rather than a guarantee. Fish Gastmeier Lake where the bottom changes rather than where it looks deep.

• Seasonal Patterns

  The range across the year is -21°C to 17°C. The year runs cold to warm and back, with clear transitions. After early May the shallows warm and the fish move up. Ice clears near early May and comes back about mid November in a typical year. Spring is short and heavy here; autumn is longer and steadier. On Gastmeier Lake that shapes the whole year.

• Tackle & Baits

  We hold no note on access for this one. This is a natural basin, not a dammed one. There is no recorded infrastructure here; expect to find your own way in. One rod, a handful of hooks and floats, and a few small lures are enough for this water. Rules differ from one water to the next round here. Keep proof of licence with you rather than in the car. If the gate is shut, Duckbill Lake at 3.3 km is the nearest alternative. Confirm before you fish Gastmeier Lake.