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Northwest Ontario

Zone 4

Kenora, Red Lake, Dryden, Sioux Lookout, Thunder Bay

Important Notice: This page is for informational purposes only and is not an official government resource. Species data on this page is sourced from the 2026 Ontario Fishing Regulations Summary (updated December 8, 2025), but does not include waterbody-specific exceptions or variation orders. Always verify current regulations at the official zone page before you fish.
Map of Zone 4

Source: Ontario Ministry of Natural Resources. View official zone map

Zone Information

Zone Zone 4
Region Northwest Ontario
Area Kenora, Red Lake, Dryden, Sioux Lookout, Thunder Bay
Data Source 2026 Ontario Fishing Regulations Summary
Full Regulations (ontario.ca) Fish ON-Line Map Variation Orders

Zone-Wide Species Regulations

These are the zone-wide default seasons and limits. Individual lakes, rivers, and species may have different rules. Check the official regulations page for species exceptions, waterbody exceptions, and fish sanctuaries.

Species Open Season Sport Limit Conservation Limit Notes
Brook Trout January 1 to Labour Day 5 2 Not more than 1 greater than 30 cm
Lake Trout January 1 to September 30 2 1 Not more than 1 greater than 56 cm (sport)
Lake Whitefish Open all year 12 6
Muskellunge 3rd Saturday in June to December 15 1 0 Must be greater than 102 cm
Northern Pike Open all year 4 2 None between 70-90 cm; not more than 1 greater than 90 cm
Largemouth/Smallmouth Bass Open all year (size restricted Jan 1-Jun 30 and Dec) 4 2 Must be less than 35 cm from Jan 1-Jun 30 and Dec 1-31
Crappie Open all year 15 10
Sunfish Open all year 50 25
Walleye and Sauger January 1 to April 14, and 3rd Saturday in May to December 31 4 2 Not more than 1 greater than 46 cm
Yellow Perch Open all year 50 25
Licence types: Sport Limit = daily catch and possession limit under a Sport fishing licence. Conservation Limit = daily catch and possession limit under a Conservation fishing licence. Limits marked 0 mean catch and release only. Always check for aggregate limits (e.g., combined trout and salmon limits) at ontario.ca.

General Rules for All Anglers

Licence Required

All anglers 18 and older must carry a valid Ontario fishing licence. Canadian residents can fish free on select free fishing days. Veterans and active Canadian Armed Forces members residing in Ontario fish for free.

Bait Restrictions

Many zones have Bait Management Zones (BMZ) restricting the movement of live or dead baitfish and leeches. Check the bait rules for this zone at ontario.ca/bait.

Fish Sanctuaries

Certain waters in this zone are closed to fishing during specific periods to protect spawning fish. See the full list of sanctuaries at the official zone regulations page.

Catch and Release

Proper catch-and-release technique helps maintain fish populations. For guidance, see Ontario's catch-and-release guidelines .