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

20 Years With Fish TV!

Fish TV discusses their favourite Ontario catches

Eating Northern Pike

The Best Recipe to Cook This Fish

Bass Fishing at Agnew Lake Lodge

This family-owned lodge is the perfect base for excellent angling adventures in Northeastern Ontario.

Ontario Brook Trout

Fish these 10 sweet spots.

Top 5 Baits for Smallmouth and Largemouth Bass

What baits do you use to target bass? Find out why these 5 are the best!

Don’t Be Afraid Of Muskies

Muskies are fish of 10,000 casts and are found in large bodies of water in Northwestern Ontario.

Steelhead and Salmon of Northern Ontario

Ontario's north is home to tributaries of Lake Superior and Lake Huron—and many species of salmon and steelhead

Predicting Lake Thickness

When Will Ontario Lakes Freeze Over This Winter?

Abitibi Walleye Experience

Fishing for Walleye, Northern Pike and Jumbo Perch

Your Lake Nipissing Getaway Awaits

A resort located just 3 hours north of the GTA with cottages, a sandy beach, and Lake Nipissing’s most aggressive spring walleye.

Yellow Perch Egg-Stacy

Hardcore perch anglers, read on!

Lake Nipigon Adventure

Fishing for Lake Trout, Walleye & Pike

Pleasant Cove Resort

Setting sights on Georgian Bay Northern Pike

Top 10 Streamers for Ontario Brook Trout

Big Brook Trout get that way by eating lots of smaller fish which is why streamers work well.

Baptiste Bass

Catching 5- to 6-Pound Smallmouth Bass Each Fishing Season

St. Francis Titans

Fishing the Original Muskie Capital of the World

Top 5 Musky Destinations in Ontario

The Musky Hunter shows you where to land the best musky in Ontario waters.

Hidden Musky Gems

The Musky Hunter shares 3 favourite musky hot spots across Ontario.

Talon Lake Lunge

This 3500-acre lake holds trophy muskies and should not be ignored!

Heat Wave? Cold Front? No Problem.

Learn how weather patterns can affect fishing techniques and strategies.