Fishing at Irregular Lake in Northwestern Ontario

Deep inside Woodland Caribou Provincial Park is Irregular Lake, one of the continent’s most northwesterly lakes with muskellunge.

Deep inside Northwestern Ontario’s Woodland Caribou Provincial Park, Irregular Lake is one of the continent’s most northerly and westerly lakes with muskellunge. Some claim muskies up to 56 inches lurk there. There are no cottages, cabins, or fishing lodges on, or even roads to, the lake. A fishing trip is a one-day, fly-in wonder!

One-Day Wonder

The late-summer day I fished it with Gene Halley, proprietor of River Air, and our friend Tom Thompson, the weather was clear with a hint of fall coolness.

Flying in, we spotted two moose. Before the mid-1980s burn in Woodland Caribou Provincial Park, it was common to see caribou on Irregular, but they’ve since disappeared. “We don’t see too many moose anymore, either,” Gene said.

Stretching for approximately 8 km, Irregular Lake has an erratic shoreline and myriad rocky islands and shoals. The water is clear with a brownish-green stain. Submerged sandbars and reefs strewn with stones and boulders lie adjacent to drop-offs, rock walls, and weedy bays. Northern pike, muskie, whitefish, and cisco abound. On the first shoal we fished, Gene was quickly on a fish. The mid-teens muskie put up a spirited battle. “That was fun,” Gene said with a broad smile.

We moved over to a small island surrounded by huge boulders just below the surface. A splash and swirl appeared about 50 feet away. Soon, Gene was into his second muskie, a little bigger than the first. An hour later, on a dense patch of weeds, we boated four or five good-sized northerners. Casting somewhere within the weedy maze, Gene caught another nice muskie, and we rounded out the morning with several northern pikes over 10 pounds.

A Trio Of Monsters

With the wind picking up, we began to troll. In one half-hour period, we hooked, then lost, three 50-inch fish. One followed Tom’s plug to the boat, then hit Gene’s 10-inch Cotton Cordell right behind the motor. He set the hook twice – hard – but the fish fell off. I lost the second off a rocky, wind-smacked shoreline when a muskie nailed my Cisco Kid, raced towards us, found slack, and tossed the bait. Minutes later, Tom lost a third monster on the same shoreline after a short, vicious battle.

As evening set in, we headed back to the plane. I was glad to have had the chance to fish Irregular Lake, even if it was for only one day.

What To Know About Staying In Woodland Caribou Provincial Park

This provincial park is known for its remote backcountry camping. It has several paddling routes and, as the article shares, excellent fishing for trophy fish species.

  • Camping here is considered primitive; sites are small with a fire ring. They aren't signed, so it may be hard to spot them from the water.
  • Camping reservations are not available at this park. It's first-come, first-served.
  • Interior camping permits are required for backcountry camping. These can be purchased online 2 weeks before your stay. Or, purchase in person at the Ontario Parks office in Red Lake, Ontario, at the self-serve kiosk or through a local permit issuer.

Park maps are available online for purchase or contact the park office.

Leave No Trace

  • In particular, Woodland Caribou Provincial Park has a ban on glass bottles.
  • Pack out what you pack in. 
  • Leave your campsite as you found it.
  • Follow any campfire bans.
  • Do not feed animals or birds.
About Bruce Ranta

Bruce has been writing for Ontario Out of Doors for more than 18 years and has been in the outdoor writing business for more than 30 years. He has been published in Canadian and American periodicals. His passion is big game hunting, but he enjoys hunting and fishing for any and all game species. Bruce lives in Kenora on 232 acres with his spouse, Lil.

Recommended Articles

3 Great Ontario Walleye Destinations

Karl of Extreme Angler recommends must do walleye lakes in Ontario.

Guided Fishing on Lake St. Clair

Captain Jim remembers over 600 muskies in a 3 month period.

The Tigers of Sunset Country

The most picturesque of all freshwater fish.

5 Lakes, 4 Seasons, and Plenty of Fish

Fish TV selects their favourite lakes in Ontario.

Top 8 Places to Ice Fish in Ontario

Ice fishing in Ontario offers diverse catches in serene winter settings.

Agich's Kaby Kabins

Fly-in for Amazing Black Bear Hunting and Fishing

The Perfect Shore Lunch

Try this award-winning recipe on your next Ontario fishing trip.

Lake of Bays fishing

Smallmouth Bass Fishing in Muskoka

Fly Fishing Basics

Learn Tips From An Avid Angler Towards Initial Fly FIshing Success

The Ultimate Winter Perch Trap

Ice-fishing tips for landing yellow perch

3 Must Fish Ontario Hotspots for Smallmouth Bass

Everyone has a bucket list for something. Die-hard bass anglers have many.

Top 5 Tips To Fish Smallmouth Bass in Ontario

Ontario has some of the top smallmouth bass opportunities. in the world.

Terrestrial Flies for Brook Trout

These fish feed like crazy and look for opportunities for a big protein meal.

Go Shallow For More Walleye

Walleye anglers think the fish are always in at least ten-foot or deeper. They're wrong!

Bob Izumi searches for bass and pike

Fishing unfamiliar territory, Bob Izumi lands monster smallies and Northern pike

Striker's Point Lodge

Hungry Walleyes and Big Pike on Whitewater Lake

Salmon Fishing

The Michipicoten River is a Sleeper for Chinook

Great Fishing in Northern Lights Country Up Highway 588

Find bass, walleye and trout on your next fishing trip.

3 Great Baits For Northern Bass

What should be In your tackle box on your next fishing trip.

Ten Mile Lake Lodge

Enjoy Northern hospitality fishing for splake, brook trout and lake trout