Petersen Lake near Greenstone: Fishing Spots, Seasons and Access

• Overview

  Petersen Lake sits in Thunder Bay District, out in Ontario. Height above sea level is 325 metres. Around 18 hectares of surface means several distinct areas to work. With about 2.1 km of edge, you can try several depths in one session. Nearest place of any size is Greenstone, 25 km away. Thunder Bay is the closest city, 197 km away. This one is safely inside the county line.

• Where to Fish on Petersen Lake

  No chart reached our records; the first cast is your sounding. This is a lake, so the margins and the first drop matter most. A soft bed grows weed late into autumn, which keeps fish shallow. Reported across Thunder Bay District: cisco, blackfin cisco, rainbow smelt and bloater. Records at county level tell you what is around, not what is stocked here. On Petersen Lake the first feature you find is usually worth a session.

• Seasonal Patterns

  On the long-term average, July reads 16°C and January reads -20°C. Cold dominates the year and the fishing works around it. Count the season from break-up, usually early May. On average, early May opens the water and mid November closes it again. Late spring and early autumn carry the year between them. Time your trip to Petersen Lake by conditions rather than dates.

• Tackle & Baits

  The rules here are undocumented as far as public sources go. It formed naturally, so levels move with rainfall rather than with a gate. Nothing formal is recorded here: no ramp, no car park, no marked path. A light spinning outfit with a small box of lures and some bait covers most of what swims here. Bank access can be seasonal on ground like this. Night access is frequently treated as a separate matter. Failing this one, try Aldon Lake, 1.2 km away. Rules at Petersen Lake are worth checking on the day.