Brain Lake Fishing near Mattawa, Ontario

• Overview

  Brain Lake belongs to Nipissing District, Ontario. Height above sea level is 341 metres. The water covers some 37 hectares, so pick a bank rather than trying to cover it all. The bank runs about 4.0 km all the way round, so one visit can cover most of it. You are 23 km from Mattawa. The nearest city of size is Greater Sudbury, 182 km away. One jurisdiction covers this water end to end.

• Where to Fish on Brain Lake

  Without a survey to go on, judge depth from how the bank falls away. Where the bottom changes texture, fish gather; find that line. Bays and points beat straight shoreline every time on water like this. Records held for Nipissing District cover smallmouth bass, cisco, yellow perch and pumpkinseed. County records show the wider picture rather than this one place. Fish Brain Lake where the bottom changes rather than where it looks deep.

• Seasonal Patterns

  Average temperature peaks around 18°C in July and bottoms out near -13°C in January. Four clear seasons, with a proper winter at one end. Once it clears, about late April, the fishing comes on quickly. Break-up near late April, freeze-up near late November: that is the shape of an average year. Early summer and early autumn carry the open-water season. Brain Lake runs to that rhythm year in and year out.

• Tackle & Baits

  No access rule appears in what we hold. It formed naturally, so levels move with rainfall rather than with a gate. The nearest recorded ramp is Brain Lake Access Point (#28), 510 m out. Overnight stays are possible 140 m away. Provincial rules still apply whatever the bank status. Barbless rules turn up on managed water more often than not. South Long Lake at 2.8 km is the sensible second choice. Signs at Brain Lake carry more weight than any list.