Fishing Nass Lake in Thunder Bay District, Ontario

• Overview

  Nass Lake is set in Thunder Bay District, Ontario. Everything around it is northern bush. Surface area runs to roughly 3.06 sq km, so plan for one area rather than the whole. There is roughly 22 km of bank, more than one visit can cover properly. On our Thunder Bay District list it sits near the top for size. The closest town, Longlac, is 105 km distant. Geraldton is 108 km and Greenstone 109 km. This one is safely inside the county line.

• Where to Fish on Nass Lake

  There is no recorded depth, so work from what you can see. 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. Survey and observation records for Thunder Bay District include cisco, blackfin cisco, rainbow smelt, bloater and shortjaw cisco. The list covers the county rather than this water alone, so treat it as a guide. Nass Lake gives up its fish to patience rather than distance.

• Seasonal Patterns

  Temperature averages peak at 16°C in July and bottom out at -21°C in January. Water stays cold even at the height of the year. Winter locks it down, and early May brings it back. Break-up sits around early May on average, with the water closing again about early November. Right after break-up, and again as the nights sharpen, is when to go. Plan around that when you fish Nass Lake.

• Tackle & Baits

  The access position is unclear from public sources. Records list it as a natural water body rather than an impoundment. Mapping is blank for access, so scout the approach before committing the car. Keep the gear simple: light line, small hooks, split shot and a couple of proven lures. Parking is often the real limit rather than the bank itself. Some stretches are reserved and marked as such on the ground. Should this one be busy, Briarcliffe Lake is 3.3 km off. Treat access at Nass Lake as something to verify.