Slim Lake Fishing in Thunder Bay District, Ontario

• Overview

  In Ontario, Slim Lake belongs to Thunder Bay District. The bank is 338 metres above sea level. Surface area runs to about 3 hectares — small enough to read in one session. On size it sits at the modest end of our Thunder Bay District list. For a base, Greenstone sits 65 km out. Geraldton is 78 km away, with Longlac at 102 km. One jurisdiction covers this water end to end.

• Where to Fish on Slim Lake

  No figure exists for depth, so let the water show you. 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. Fish documented in Thunder Bay District include cisco, blackfin cisco, rainbow smelt and bloater. The list covers the county rather than this water alone, so treat it as a guide. On Slim Lake the first feature you find is usually worth a session.

• Seasonal Patterns

  July runs about 16°C on average, January about -20°C. Winter runs most of the calendar, and everything worth doing happens in the gap. Ice-out usually falls in early May, and the weeks after it fish hardest. Averages suggest open water from about early May through to roughly mid November. The open run goes from the thaw to the freeze, and April through October covers most of it. On Slim Lake the same rules apply, with local timing.

• Tackle & Baits

  The access position is unclear from public sources. No made access is recorded, so a short walk in is the likely arrangement. Keep the gear simple: light line, small hooks, split shot and a couple of proven lures. Where access is informal, keep it that way by behaving. Access can change hands, so last year's answer may not hold. If the gate is shut, Lunam Lake at 0.6 km is the nearest alternative. Nothing here settles the position at Slim Lake for certain.