What the Black River offers Wisconsin anglers

The Black River is a warm-water system that flows through Jackson County before joining the La Crosse River near Melrose. It's smaller and slower than the main La Crosse, which makes it distinct—you're fishing a creek-like channel with defined banks, overhanging timber, and backwater pockets rather than a broad valley river. The water stays warmer through summer and holds walleye, smallmouth bass, and channel catfish year-round, with seasonal patterns that shift more dramatically than you'd see in a larger system.

Most of the accessible fishing happens between Melrose and the dam near Black River Falls. The river here runs 30 to 50 feet wide in most sections, with depths ranging from 4 to 12 feet in the main channel and shallower flats along the banks. Current is gentle except after heavy rain, so you can fish it effectively from a small boat or even wade in low-water years. The character changes as you move upstream—lower sections are more open, while the upper reaches narrow and tighten around bends.

Key Takeaways

  • Walleye bite best in spring (April through May) and fall (September through October) when water temperatures are in the 50s to low 60s, and you'll find them in deeper holes and along drop-offs.
  • Smallmouth bass are active May through September, holding around submerged timber, rock, and the outside bends of curves where current scours deeper water.
  • Summer fishing requires early morning or evening trips because daytime water temperatures push walleye into the deepest holes and make them inactive.
  • Access points are limited; Melrose and Black River Falls are the main towns with public boat landings, and you should check current conditions before launching because water levels vary with dam releases and rainfall.

Walleye patterns by season

Spring walleye fishing on the Black River peaks in April and May when water temperatures climb from the 40s into the 50s. Fish move out of the deepest winter holes and spread across the river, feeding actively before spawning. Target the deeper sections between Melrose and the first major bend upstream—walleye hold in 8 to 12 feet of water along the channel edges and will chase live bait or jigs tipped with minnows. Jigging vertically in the deepest holes produces steady catches, and you can cover water by drifting live bait along the drop-offs.

Summer (June through August) is the slowest season for walleye on the Black River. Water temperatures climb into the 70s, and walleye retreat to the deepest holes and the shadiest timber. If you fish at all, do it at dawn or dusk when water temperatures are lowest. Nighttime fishing with live bait or crankbaits can work, but expect fewer fish and longer waits between bites compared to spring and fall.

Fall is the second-best walleye season, running September through October. As water cools back into the 50s and low 60s, walleye move back into the shallower flats and mid-depth zones to feed heavily before winter. The same techniques that work in spring—jigging and live bait drifting—produce well, and you'll often find fish in slightly shallower water than you would in spring. October can be excellent if you can get out before water temperatures drop below 50.

Smallmouth bass and summer fishing

Smallmouth bass are the most consistent summer fish on the Black River. They hold around submerged timber, rock piles, and the outside bends of curves where the current has scoured deeper water. May through September is prime time, with the best fishing in June and July when water temperatures are in the high 60s to low 70s. Throw 4- to 6-inch soft plastics, small crankbaits, or topwater lures near cover and work them slowly—the Black River's gentle current means fish aren't chasing fast-moving baits.

The river's narrow channel and overhanging trees make smallmouth fishing technical. You'll need to cast tight to the banks and work your lure through the shade. Early morning and evening produce more active fish, but you can catch smallmouth throughout the day if you focus on the deepest, shadiest holes. Channel catfish also bite well in summer on cut bait or chicken liver fished on the bottom in deeper holes at night.

Access points and water conditions

The main public boat landing is at Melrose, where the Black River meets the La Crosse River. This is a developed access with parking and a paved ramp, and it's the easiest entry point for most anglers. From Melrose, you can fish downstream into the La Crosse River or upstream into the Black River proper. The second access point is near Black River Falls, upstream of the dam, though this landing is smaller and less developed.

Water levels on the Black River vary with dam releases from upstream and with rainfall. After heavy rain, the river rises quickly and current increases, making it harder to fish and less safe to navigate. Check the dam release schedule before you go, and call ahead to local bait shops in Melrose or Black River Falls to ask about current conditions. Low-water years can make the upper sections too shallow for boats, so wading or a small canoe becomes the better option.

Tackle and technique for the Black River

For walleye, bring a 6- to 7-foot medium-power spinning rod with 6- to 8-pound monofilament or braided line. A 1/4- to 3/8-ounce jig head tipped with a live minnow or soft plastic is the standard approach. Drift along the channel edges and drop-offs, or fish vertically in the deepest holes. Live bait rigs with a slip sinker and a size 2 or 4 hook also work well and are less likely to snag on timber.

For smallmouth, a 6- to 6.5-foot medium spinning rod with 8- to 10-pound line handles the cover better. Soft plastics in 4- to 6-inch lengths, small crankbaits, and topwater lures all produce. The key is working lures slowly and keeping them in contact with cover. Because the river is narrow and timber-heavy, you'll lose lures—bring extras and accept it as part of fishing this system.

A small boat (16 to 18 feet) is ideal, but a canoe or kayak works well in low-water years or if you want to explore the upper sections. The current is gentle enough that you can fish effectively from a drifting boat, and the narrow channel means you don't need a large motor. An electric trolling motor is useful for positioning without spooking fish.

Regulations and seasonal closures

Wisconsin's statewide walleye season runs year-round on the Black River, with a daily limit of five fish and a 15-inch minimum length. Smallmouth bass season is open year-round with a daily limit of five fish and a 12-inch minimum. Channel catfish have no closed season and no size or bag limit. These rules apply to the entire Black River system, but always check the current Wisconsin Department of Natural Resources fishing regulations before you go, as rules can change.

The Black River is not a trout stream, so you won't encounter special regulations for cold-water species. However, the river does have some areas managed for specific purposes—check with the DNR or local bait shops to confirm whether any sections are closed to fishing or have special restrictions.

When to fish and what to expect

Spring (April through May) and fall (September through October) are the best times to fish the Black River. Water temperatures are ideal for walleye activity, the weather is usually pleasant, and you'll spend less time fighting heat and bugs. Summer fishing is possible but requires early starts and evening trips, and you should expect slower action than in shoulder seasons.

Winter fishing is possible but less common. The river rarely freezes solid, and some anglers fish through the ice in the deepest holes, but access can be difficult and conditions are unpredictable. Most anglers focus on spring and fall, when the river is at its best.

Frequently Asked Questions

Can I wade the Black River?

Yes, wading works well in low-water years or in the shallower sections near Melrose. Wear a wading belt and felt-soled boots for traction on the muddy bottom. The river bottom is soft and uneven, so move slowly and use a wading staff if you're uncomfortable. In high-water years or near the dam, wading is unsafe.

What's the difference between the Black River and the La Crosse River?

The Black River is smaller, warmer, and slower than the La Crosse. It holds walleye and smallmouth year-round but is less productive for trout. The La Crosse is larger, cooler, and has more current, making it better for walleye in spring and fall but also home to brown trout in the upper sections.

Do I need a boat to fish the Black River?

No. You can wade in low-water years, fish from the bank near Melrose, or use a canoe or kayak. A small motorboat gives you more access to the upper sections and lets you cover more water, but it's not required.

What's the best bait for walleye on the Black River?

Live minnows (shiners or chubs) are the most reliable. Jigs tipped with minnows or soft plastics also work well. Nightcrawlers can produce but are less consistent than minnows on this system.

When does the walleye bite shut down in summer?

Walleye become inactive when water temperatures exceed 72 to 75 degrees. On the Black River, this usually happens by mid-June and lasts through August. Early morning and evening fishing, or switching to smallmouth and catfish, are your best options during this period.