What You'll Find at High Falls Flowage

High Falls Flowage is a 2,400-acre reservoir in Iron County, roughly 20 miles northeast of Hurley, created by a dam on the Montreal River. The water is deep, clear, and cold — conditions that support a strong musky population and solid walleye fishing. The flowage also holds northern pike, largemouth bass, and panfish, but musky and walleye are what draw most anglers here.

The reservoir sits in the heart of the Northern Highland-American Legion State Forest, surrounded by dense woods with minimal development. Access is limited to a few public landings, which keeps the water less crowded than many Wisconsin flowages. The shoreline is rocky and heavily forested, with deep water close to shore in many spots — a setup that favors musky hunters working structure.

Water clarity varies by season and recent rainfall, but generally runs 8 to 15 feet in summer, which is excellent for sight-fishing musky and for understanding where walleye are holding. The flowage is cold enough that summer temperatures rarely exceed the low 70s, even in July and August.

Key Takeaways

  • High Falls Flowage is a 2,400-acre musky and walleye lake in Iron County, about 20 miles from Hurley, with clear water and rocky structure that holds fish year-round.
  • Public boat landings are limited to a few sites; the main access is at the High Falls Flowage public landing on Forest Road 103, which has a paved ramp and parking.
  • Musky season runs year-round in Wisconsin, but late summer through fall (August to October) is peak, when fish move to shallower structure as water cools.
  • Walleye bite best at dawn and dusk in summer, and deeper structure (20 to 40 feet) holds fish during midday; spring and fall offer more consistent daytime action.
  • A Wisconsin fishing license and musky stamp (if targeting musky) are required; check current regulations for bag limits and size restrictions before you fish.

Seasons and What to Expect

Spring (April through May) brings walleye to shallower flats and rocky points as water warms from the 40s into the 50s. Musky are active but scattered; many anglers focus on walleye during this window. Water levels can be high from snowmelt, and the flowage can be rough on windy days.

Summer (June through August) is peak musky season for sight-fishing and casting. Water clarity is at its best, and musky move to deeper structure and weed edges as the lake warms. Walleye bite hard at dawn and dusk but retreat to 25- to 40-foot depths during midday. Evening topwater musky fishing can be excellent in July and August.

Fall (September through October) is arguably the best overall season. Water cools, musky move back to shallower structure, and walleye bite throughout the day. The flowage is less crowded than summer, and fish are more aggressive as they feed before winter. Largemouth bass also become more active in fall.

Winter (November through March) brings ice fishing for walleye and panfish. The flowage typically freezes by mid-December. Musky fishing continues through the season for dedicated anglers, though open-water access is limited to the main channel and areas near the dam.

How to Get There and Where to Launch

High Falls Flowage is accessed via Forest Road 103, which branches north from County Road M near the town of Montreal. The road is paved but narrow; allow extra time if you're towing a boat. GPS coordinates for the main public landing are approximately 46.2°N, 89.2°W.

The High Falls Flowage public boat landing is the primary access point. It has a paved two-lane ramp, parking for roughly 20 vehicles with trailers, and a small picnic area. The ramp is maintained year-round by the Wisconsin Department of Natural Resources. No fuel or supplies are available at the landing; the nearest gas and food are in Hurley, about 20 miles south.

A secondary landing exists at the south end of the flowage, but it is smaller and less developed. Check with the Iron County Forestry Department or the Hurley area chamber of commerce if you need current information on secondary access points, as maintenance and availability can change.

The drive from Hurley takes roughly 45 minutes. From Ashland, allow 90 minutes. Cell service is spotty throughout the area; download maps and waypoints before you leave town.

Musky Fishing: Techniques and Timing

High Falls Flowage holds a solid musky population, with fish ranging from 30 to 50 inches. The lake record is over 54 inches. Musky are present year-round, but late summer and fall (August through October) offer the most consistent action and the highest catch rates.

The rocky shoreline and deep structure near the dam are prime musky habitat. Fish often hold in 15 to 30 feet of water during summer, moving shallower as water cools in fall. Casting large swimbaits (8 to 10 inches), bucktail spinners, and topwater plugs are standard approaches. Early morning and evening produce more strikes than midday, though musky can bite any time.

Sight-fishing is possible in summer when water clarity is high. Polarized sunglasses and a slow, methodical approach work best. Many anglers fish the flowage for multiple days to build a pattern and locate productive structure. Musky fishing requires patience; expect to cast for hours between strikes.

Wisconsin musky regulations allow year-round fishing with no closed season. The current minimum size is 40 inches, and the daily bag limit is one fish. A musky stamp (included with a Wisconsin fishing license) is required. Always check the current Wisconsin Department of Natural Resources regulations before you fish, as rules can change.

Walleye Fishing: Structure and Depth

Walleye are abundant at High Falls Flowage and range from 12 to 20 inches, with occasional fish over 24 inches. Summer walleye fishing is best at dawn and dusk, when fish move to shallower structure to feed. Deeper water (25 to 40 feet) holds walleye during midday, but they are less aggressive in bright light.

Spring and fall offer more consistent daytime walleye action. Rocky points, the dam structure, and deeper flats are reliable locations. Live bait (shiners or crawlers) under a slip bobber works well in spring and early summer. Jigging with live minnows or soft plastics is effective year-round, especially in deeper water. Trolling crankbaits along the main channel can also produce.

Winter ice fishing for walleye is popular on High Falls Flowage. Jigging with live minnows in 20 to 35 feet of water is the standard approach. The flowage typically has good ice by mid-December and remains fishable through February.

Wisconsin walleye regulations vary by water body. High Falls Flowage currently has a daily bag limit of five walleye per person, with a 15-inch minimum size. Check the current Wisconsin Department of Natural Resources regulations, as limits and size restrictions are subject to change.

Other Species and Panfish Opportunities

Northern pike are present throughout the flowage and can reach 30 inches. They occupy similar habitat to musky but are generally more aggressive and easier to catch. Pike fishing is good in spring and fall, and they bite readily on large swimbaits and spinners.

Largemouth bass inhabit the shallower, weedy areas of the flowage, particularly along the north shore. Summer and fall are best for bass; they respond to topwater plugs and soft plastics. Bass are not the primary target here, but they offer a secondary option if musky and walleye are slow.

Panfish — bluegill, crappie, and pumpkinseed — are abundant in shallow bays and along the shoreline. Summer evening fishing with small jigs or live crickets can produce good panfish action. Winter ice fishing for panfish is also productive and a good option for families or anglers new to the flowage.

Regulations, Licenses, and What to Bring

A valid Wisconsin fishing license is required for all anglers 16 and older. Licenses are sold online through the Wisconsin Department of Natural Resources website, at sporting goods stores, and at bait shops in Hurley. A musky stamp is required if you intend to fish for musky; it is included with most Wisconsin fishing licenses.

Current regulations for High Falls Flowage include a 40-inch minimum for musky (one fish per day), a 15-inch minimum for walleye (five per day), and a 24-inch minimum for northern pike (five per day). Largemouth bass have a 12-inch minimum (five per day). These rules are subject to change; verify current limits before you fish by checking the Wisconsin Department of Natural Resources website or calling the Iron County Forestry Department.

Bring a reliable GPS unit or download offline maps, as cell service is limited. A depth finder is essential for walleye and musky fishing. Polarized sunglasses are valuable for sight-fishing musky in clear water. The weather can change quickly; pack rain gear and a warm layer even in summer. Fuel up in Hurley before heading to the flowage.

Frequently Asked Questions

What is the best time of year to fish High Falls Flowage?

Late summer through fall (August to October) is peak season for musky and offers the most consistent overall fishing. Water is cool, fish are aggressive, and the flowage is less crowded than summer. Spring (April to May) is also good for walleye. Winter ice fishing is productive but requires cold, stable weather.

Can I fish musky year-round at High Falls Flowage?

Yes, Wisconsin has no closed season for musky. High Falls Flowage is open to musky fishing all year. However, late summer and fall offer the best conditions and highest catch rates. Winter musky fishing is possible but requires open-water access, which is limited once the flowage freezes.

How far is High Falls Flowage from Hurley?

The flowage is approximately 20 miles northeast of Hurley, about a 45-minute drive via Forest Road 103. Ashland is roughly 90 minutes away. No services are available at the landing; plan to fuel and resupply in Hurley before heading out.

Is there a size minimum for musky at High Falls Flowage?

Yes, the current minimum size is 40 inches. Only one musky per day may be kept. Always check the Wisconsin Department of Natural Resources website before you fish, as regulations can change year to year.

What should I do if I get lost on the way to the flowage?

Download offline maps and GPS waypoints before you leave cell service. The main landing is accessed via Forest Road 103 north of Montreal. If you lose your way, return to County Road M and reorient. Call the Iron County Forestry Department or Hurley chamber of commerce from a location with cell service if you need directions.