Castor Lake, Ontario: Fishing Spots and Seasons

• Overview

  Set in Thunder Bay District, Castor Lake is an Ontario water. What surrounds it is boreal forest. Surface area is around 37 hectares, which gives you real water without needing a boat. Around 4.6 km of margin, front to back. The town to know is Greenstone, 54 km out. The nearest city of size is Thunder Bay, 242 km away. The nearest edge is a long way off, so local rules apply throughout.

• Where to Fish on Castor Lake

  Nothing in our records gives a depth for this one. Bays and points beat straight shoreline every time on water like this. Where the bottom changes texture, fish gather; find that line. Survey and observation records for Thunder Bay District include cisco, blackfin cisco and rainbow smelt. What holds for the county may not hold for this water. Fish Castor Lake where the bottom changes rather than where it looks deep.

• Seasonal Patterns

  The warm month here averages 16°C; the cold one sits at -20°C. Open water arrives late and leaves early, which concentrates the fishing. The lid usually sets by midwinter and gives way around early May. The water is typically free of ice between early May and mid November. Fish feed hardest at the start and the close of the open season. That is the shape of the year on Castor Lake.

• Tackle & Baits

  Nothing in our records says who may fish here. It formed naturally, so levels move with rainfall rather than with a gate. No made access is recorded, so a short walk in is the likely arrangement. A light spinning outfit with a small box of lures and some bait covers most of what swims here. Check locally before you travel, because a wasted drive is a long one. Some water is controlled locally without a sign saying so. Odikon Lake sits 2.5 km off and takes the overflow. For Castor Lake in particular, ask before you travel.