Porthos Lake Fishing in Thunder Bay District, Ontario

• Overview

  Porthos Lake is a Thunder Bay District water, in Ontario. The surface lies 341 metres up. Around 82 hectares of surface means several distinct areas to work. With about 3.9 km of edge, you can try several depths in one session. Head to Greenstone, 3.9 km away, for anything you forgot. Thunder Bay sits 217 km out, and it is the nearest city worth the name. There is no boundary nearby to worry about.

• Where to Fish on Porthos Lake

  Depth is unknown to us, and the shoreline is the better guide. Read the surface for the wind lane, then fish the edge of it. Still water like this holds fish on the edges rather than out in the open. 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. On Porthos Lake a short move beats a long cast.

• Seasonal Patterns

  The seasonal spread runs -20°C to 16°C. Water stays cold even at the height of the year. Hard cover is dependable here; it goes around early May. Break-up near early May, freeze-up near mid November: that is the shape of an average year. September and October fish steadily right up to the freeze. Porthos Lake runs to its own calendar within the local pattern.

• Tackle & Baits

  Public data does not answer the access question here. This is a natural basin, not a dammed one. A picnic spot sits 1.4 km from the bank. One rod, a handful of hooks and floats, and a few small lures are enough for this water. Local rules can differ across the county line, so check where you stand. A polite question at the farm gate opens more banks than anything else. The nearest alternative is Volcan Lake, 1.9 km out. Ask locally about Porthos Lake if anything is unclear.