What Glen Loch Flowage Offers

Glen Loch Flowage is a shallow impoundment in Bayfield County, roughly 20 miles south of Ashland, that holds walleye, northern pike, and panfish in a setting that rewards patience and shallow-water technique. The flowage covers about 1,100 acres but averages only 8 to 10 feet deep, with much of the productive water between 4 and 7 feet. This shallow character means the water warms quickly in spring and cools fast in fall, concentrating fish into narrow seasonal windows and making timing critical.

The flowage is fed by the White River and drains into the Montreal River system. Its shallow basin, dense weed growth, and soft bottom create ideal habitat for walleye and pike but also mean that water clarity and temperature swings drive fish behavior more dramatically than on deeper lakes. Summer heat can push walleye into the deepest holes or into weeds during midday, while spring and fall offer the most consistent daytime bite.

Key Takeaways

  • Glen Loch Flowage is a 1,100-acre shallow impoundment averaging 8 to 10 feet deep, best for walleye and northern pike in spring and fall.
  • Access is limited to a public boat launch on the south end near County Road M; no other public landings exist on the flowage itself.
  • Walleye fishing peaks in May and September through October, with summer requiring early morning or evening trips and deep-weed presentations.
  • Pike run 18 to 28 inches on average, with occasional fish over 30 inches; they respond to large swimbaits, bucktail spinners, and live shiners in spring and fall.
  • Wisconsin fishing licenses and a trout stamp are required; check current regulations for daily limits and size restrictions before you fish.

When to Fish Glen Loch Flowage

Spring (May through early June) is the most reliable season. Walleye move shallow to spawn and feed aggressively in the 4- to 7-foot zone along weed edges and in the White River inlet. Water temperatures in the low to mid-50s trigger consistent evening bites, and you can catch fish from an hour before sunset through dark. Jigs tipped with minnows or crawlers work best; cast along the weed lines and work the bottom slowly.

Summer (June through August) is hit-or-miss. Walleye retreat to the deepest holes (9 to 11 feet) or bury in dense weeds during the day. Fish early morning (before 8 a.m.) or after 8 p.m., targeting the same weed edges but in deeper water. Vertical jigging over the deepest basin with live minnows can produce, but expect slower action than spring. Pike remain active in shallow weeds and respond to large swimbaits and topwater lures in low light.

Fall (September through October) rivals spring. Walleye move back to shallower water as temperatures drop, and the bite is strong from mid-afternoon through dark. Jigs, live minnows, and crankbaits all work. Pike feed heavily before winter and are aggressive on large baits and lures. By late October, water temperatures drop into the 40s and the season winds down.

Winter ice fishing occurs from December through February when ice is safe (typically 4 inches or more). Walleye and pike are present but slower; tip-ups with live minnows and jigging with spoons are standard methods. Always check ice thickness and local conditions before heading out.

Access and Launch Information

The only public boat launch on Glen Loch Flowage is a concrete ramp on the south end, accessible via County Road M near the town of Glen Flora. The launch has parking for roughly 15 vehicles and a small gravel lot. There is no fuel dock, no bait shop, and no amenities at the launch itself; bring everything you need.

The nearest services are in Ashland, about 20 miles north. Gas, groceries, and bait are available there, but plan to fuel up before you leave town. The launch is open year-round, though winter access depends on road conditions and parking lot maintenance. Call the Bayfield County Parks Department or check the Bayfield County website for current conditions before a winter trip.

No private landings are available to the public. The flowage is surrounded by private property and state forest land; respect posted signs and do not trespass. Launching at the public ramp is your only legal option.

Species, Size, and Seasonal Patterns

Walleye are the primary target. Fish typically run 14 to 20 inches, with occasional fish to 24 inches. They spawn in May in shallow water near the White River inlet and feed most actively in low light. Summer heat pushes them deep or into dense weeds; fall cooling brings them back to shallower weed edges. Evening jigs tipped with minnows or crawlers are the most consistent method year-round.

Northern pike average 18 to 28 inches, with occasional fish over 30 inches. They are present year-round but most aggressive in spring (April through May) and fall (September through October). Pike hunt in shallow weeds and along weed edges; large swimbaits (4 to 6 inches), bucktail spinners, and live shiners all produce. Summer pike are less active but can be caught in early morning or late evening in shallow weeds.

Panfish (bluegill, crappie, and perch) are abundant but small. They provide good action for children or anglers looking for a break from targeting walleye and pike. Panfish congregate in shallow weeds and around submerged wood; small jigs, live minnows, and crickets work well. Summer is the best season for panfish.

Tackle, Technique, and Presentation

For walleye, a 6- to 7-foot medium-power spinning rod with 8- to 10-pound braided or monofilament line is standard. Jigs (1/4 to 3/8 ounce) tipped with live minnows or crawlers are the most productive lure. Cast along weed edges and work the bottom with a slow lift-and-drop motion. Crankbaits (shallow-diving, 4 to 6 feet) and live-bait rigs also work, especially in spring and fall.

For pike, use a 6.5- to 7-foot medium-heavy rod with 10- to 15-pound line and a wire or heavy fluorocarbon leader to prevent bite-offs. Large swimbaits (4 to 6 inches), bucktail spinners, and topwater lures all produce. Cast near weed edges and along the deeper weed lines; pike often hunt the transition zone between shallow and deep water. Retrieve steadily or work the lure with pauses to trigger strikes.

The shallow, weedy nature of Glen Loch means you will spend time picking weeds off your lure. Use weedless jigs or jigs with weed guards to reduce fouling. A weed rake or net helps clear weeds from your line. Slow presentations work better than fast ones; walleye and pike in shallow water are easily spooked by aggressive retrieves.

Regulations and Licensing

Wisconsin fishing licenses are required for all anglers 16 and older. A trout stamp is also required on Glen Loch Flowage, even though you are fishing for walleye and pike. Licenses and stamps are sold online through the Wisconsin Department of Natural Resources website, at sporting goods stores, and at bait shops in Ashland.

Walleye daily limit is typically 5 fish, with a 15-inch minimum size. Northern pike daily limit is typically 5 fish, with a 24-inch minimum size. Panfish limits vary by species; check the current Wisconsin fishing regulations before you fish, as rules can change year to year. Regulations are published on the DNR website and in the annual Wisconsin fishing guide.

Glen Loch Flowage is open year-round for all species. Winter ice fishing is allowed when ice is safe. Always verify current regulations with the Wisconsin DNR before your trip, as size limits and daily limits can shift.

Nearby Fishing and Lodging

If Glen Loch does not produce or you want to explore other water, the Montreal River (which drains the flowage) holds walleye and pike and is accessible at several public landings downstream. Lake Superior is 20 miles north near Ashland and offers lake trout, coho salmon, and steelhead in season. The Bad River, also in the area, is a smaller stream fishery for walleye and panfish.

Ashland is the nearest town with lodging, restaurants, and services. Hotels, motels, and vacation rentals are available; book ahead during summer and fall weekends. Camping is available at state forest campgrounds in the area. The Bayfield County Parks Department website lists public campgrounds and facilities.

Frequently Asked Questions

Can I fish Glen Loch Flowage in winter?

Yes, ice fishing is allowed when ice is safe (typically 4 inches or more). Walleye and pike are present but slower than in open water. Tip-ups with live minnows and jigging with spoons are standard methods. Always check ice thickness and local conditions before heading out, and avoid fishing alone.

What is the best time of day to fish for walleye?

Evening (one hour before sunset through dark) is most consistent, especially in spring and fall. Summer requires early morning (before 8 a.m.) or after 8 p.m. to avoid heat-stressed fish. Overcast days can produce all day, but clear summer days are slow during midday.

Do I need a trout stamp to fish Glen Loch Flowage?

Yes, even though Glen Loch holds walleye and pike, not trout. Wisconsin requires a trout stamp on all designated trout waters, including this flowage. The stamp is sold with your fishing license and costs a few dollars.

Where can I buy bait and tackle near Glen Loch?

The nearest bait and tackle shops are in Ashland, about 20 miles north. There are no shops at or near the launch. Bring everything you need or stop in Ashland before heading to the flowage.

What size pike should I expect to catch?

Most pike run 18 to 28 inches. Fish over 30 inches are caught but uncommon. Spring and fall produce the most aggressive pike; summer action is slower. Large swimbaits and live shiners give you the best chance at bigger fish.