Fishing at Cornish Lake, Thunder Bay District, Ontario

• Overview

  Cornish Lake is set in Thunder Bay District, Ontario. The bank is 320 metres above sea level. This is sizeable water at about 1.63 sq km, and a boat opens up most of it. You are looking at roughly 12 km of shoreline, with plenty of water between access points. Size puts it in the front rank of our Thunder Bay District list. Some 54 km away sits Manitouwadge, the nearest settlement. Thunder Bay is the closest city, 217 km away. This one is safely inside the county line.

• Where to Fish on Cornish Lake

  Open data we checked carries no depth for this water. Still water like this holds fish on the edges rather than out in the open. Read the surface for the wind lane, then fish the edge of it. Public occurrence data for Thunder Bay District names cisco, blackfin cisco, rainbow smelt, bloater and shortjaw cisco. Read it as a county summary, not a water-by-water list. Fish Cornish Lake to its features, not to its size.

• Seasonal Patterns

  Temperature averages peak at 16°C in July and bottom out at -17°C in January. The freeze holds for the better part of the year. Ice fishing carries the winter, and the water opens about early May. The open-water window runs from around early May to about mid November in an average year. Early summer and early autumn carry the open-water season. On Cornish Lake that shapes the whole year.

• Tackle & Baits

  Public sources are silent on who controls the bank. It formed naturally, so levels move with rainfall rather than with a gate. No launch point is recorded nearby, so this is a bank water unless you carry a boat in. A light spinning outfit with a small box of lures and some bait covers most of what swims here. A phone call first saves an afternoon. Where the way in crosses private ground, ask first. If the gate is shut, Wellwood Lake at 3.5 km is the nearest alternative. Treat access at Cornish Lake as something to verify.