What You'll Find at Rhinelander Flowage

Rhinelander Flowage is a 2,300-acre impoundment on the Wisconsin River in Oneida County, roughly 20 miles north of Wausau. The lake holds walleye, northern pike, muskellunge, largemouth bass, and panfish in a mix of shallow bays, deeper channels, and weed-lined structure that shifts with the seasons. The flowage is managed as a warm-water fishery and draws anglers year-round—ice fishing in winter, spring walleye runs, summer pike and musky hunters, and fall panfish activity.

The water level fluctuates because the flowage is part of a hydroelectric system operated by Wisconsin Public Service Corporation. This means water can rise or fall several feet depending on power generation schedules, which affects access points, boat launch conditions, and where fish hold. Local bait shops and the Wisconsin DNR can tell you current conditions before you launch.

Key Takeaways

  • Rhinelander Flowage holds walleye, pike, musky, and panfish across 2,300 acres with multiple public boat launches and shoreline access.
  • Water levels change due to hydroelectric operations, so check current conditions and launch status before heading out.
  • Spring and fall are peak seasons for walleye; summer is best for pike and musky; winter ice fishing is productive for panfish and walleye.
  • A Wisconsin fishing license and inland trout stamp (if applicable) are required; walleye and pike have specific bag and size limits that change annually.
  • The flowage has shallow, weedy bays on the north end and deeper channels toward the dam, each holding different species and requiring different tactics.

Access Points and Boat Launches

The flowage has three public boat launches managed by Oneida County or the Wisconsin DNR. The main launch is at Boom Lake Landing on the south end, which has a paved ramp, parking, and restroom facilities. This is the most reliable access point and handles the heaviest traffic. Boom Lake Landing is accessible year-round, though winter conditions can close it temporarily after heavy snow.

The north-end launch at Crescent Lake provides access to the shallower, weedier sections where panfish and pike congregate. This launch is smaller and can be muddy during spring runoff. A third access point exists on the east shore, though conditions and maintenance vary. Before launching, call the Rhinelander Chamber of Commerce or stop at a local bait shop to confirm which ramps are open and whether water levels are stable enough for your boat type.

Shore fishing is possible along Highway 8 on the south end and at several public easements on the north shore, though access is limited compared to boat fishing. Kayak and canoe anglers can launch at either end and explore the shallower bays, though the current can be strong near the dam and during high-water periods.

Walleye Fishing: Spring and Fall Peak

Walleye are the primary target for many anglers on Rhinelander Flowage. Spring (April through May) is the most reliable season—fish move into shallow bays and along the shoreline to spawn, and they feed aggressively before and after the spawn. Jigs tipped with live minnows or soft plastics work well in 4 to 12 feet of water near weed edges and rocky structure. Dawn and dusk are most productive, though overcast days can produce all day.

Fall (September through October) brings a second strong bite as water cools and walleye move back to shallow feeding zones before winter. The same shallow-water tactics apply. Summer walleye fishing is slower because fish retreat to deeper channels and cooler water; night fishing and live-bait rigs fished on the bottom are your best bet. Winter ice fishing produces walleye in 15 to 25 feet of water near the dam and in the deeper channels; jigging with live minnows or spoons is standard.

Wisconsin DNR regulations for walleye on Rhinelander Flowage allow a daily bag limit of five fish with a 15-inch minimum size. Check the current Wisconsin fishing regulations before you fish, as limits can change year to year. Catch-and-release is encouraged, especially for larger fish.

Pike and Musky: Summer and Fall Opportunities

Northern pike are abundant and aggressive on Rhinelander Flowage, especially in the shallow, weed-choked bays on the north end. Summer is prime pike season—cast large topwater plugs, spinnerbaits, and soft plastics around weed edges and fallen timber. Pike will chase lures in 3 to 8 feet of water and often hit hard. Early morning and late evening are best, but pike can bite throughout the day if you fish heavy cover.

Muskellunge fishing requires patience and specialized tackle. Musky are present but not abundant; most anglers target them in fall (September through November) using large crankbaits, bucktail spinners, and soft plastics in deeper channels and around structure. Musky fishing is a low-probability, high-reward pursuit—expect to cast hundreds of times for a single strike. The Wisconsin DNR stocks musky periodically to maintain the population, and regulations require a 40-inch minimum size with a one-fish daily bag limit.

Pike have a 24-inch minimum size and a five-fish daily bag limit. Both species respond to live bait (large shiners or herring) fished under a bobber in shallow water, though artificial lures are more exciting and often more effective in weedy cover.

Panfish and Bass: Year-Round Options

Bluegill, crappie, and pumpkinseed sunfish are plentiful in the shallow bays and weed beds throughout the flowage. Spring and fall are excellent for panfish; summer panfish move deeper but can still be found around weed edges in early morning. Winter ice fishing for panfish is popular and productive—drill holes in 8 to 15 feet of water near weed beds and jig with small spoons or live minnows. A single rod and a bucket of minnows can yield a cooler full of fish on a good day.

Largemouth bass are present but less abundant than pike. They inhabit the same shallow, weedy areas and respond to topwater plugs, soft plastics, and spinnerbaits. Bass fishing is best in spring and early summer before the heat drives them deeper. The Wisconsin DNR has a 12-inch minimum size and a five-fish daily bag limit for largemouth bass.

Seasons and Water Conditions

Spring (April through May) brings warming water, active fish, and reliable access—this is the easiest time to fish Rhinelander Flowage. Water levels can fluctuate as snowmelt and dam operations combine, so check launch conditions before you go. Summer (June through August) is warm and crowded; water levels are usually stable, but fish are less concentrated and require more precise location work. Early morning and evening fishing is more productive than midday.

Fall (September through November) is excellent for walleye and pike as water cools and fish feed heavily before winter. Water levels can drop as power generation decreases, which may affect boat launch access. Winter (December through March) ice fishing is popular and productive, but ice thickness varies year to year—never assume ice is safe without checking local conditions. The Wisconsin DNR publishes ice thickness reports for major lakes; call ahead or check with local bait shops.

Regulations and Licensing

You need a valid Wisconsin fishing license to fish Rhinelander Flowage. Licenses are sold online through the Wisconsin DNR website, at sporting goods stores, and at local bait shops. A daily license costs less than a season license if you fish only a few times per year. Anglers under 16 and over 65 do not need a license.

Walleye, pike, musky, and bass each have specific bag limits, size limits, and season dates. These regulations change annually, so check the current Wisconsin fishing regulations booklet before you fish. The regulations are available online and at bait shops. Catch-and-release is always legal and encouraged, especially for large fish and musky.

Nearby Services and Lodging

Rhinelander is a small town with bait shops, restaurants, and gas stations within 10 miles of the flowage. Rhinelander Bait and Tackle and other local shops stock live minnows, leeches, tackle, and current information about fish location and water conditions. Several motels and cabin rentals are available in town; the Rhinelander Chamber of Commerce can provide a list. Camping is available at state and county parks in the area.

The flowage is roughly 45 minutes north of Wausau and 90 minutes south of Minocqua, so it is accessible as a day trip from either city or as part of a longer north-woods fishing vacation. The Wisconsin River below the dam offers additional fishing opportunities for walleye and pike if you want to explore beyond the flowage itself.

Frequently Asked Questions

What is the best time of year to fish Rhinelander Flowage?

Spring (April through May) and fall (September through November) are most productive for walleye and pike. Summer is best for pike in shallow water and for musky hunters willing to cast all day. Winter ice fishing is excellent for panfish and walleye in deeper water.

How do water level changes affect fishing?

Hydroelectric operations cause water levels to rise and fall, which affects where fish hold and whether boat launches are accessible. High water pushes fish into flooded timber and shallow bays; low water concentrates fish in deeper channels. Check current conditions before launching, especially in spring and fall when fluctuations are largest.

Can I fish from shore on Rhinelander Flowage?

Shore fishing is limited but possible along Highway 8 on the south end and at public easements on the north shore. Boat fishing gives you access to more productive water and deeper structure, but shore anglers can catch panfish and pike in shallow bays during spring and fall.

What tackle do I need for musky fishing?

Musky fishing requires heavy baitcasting or spinning rods (6 to 8 feet), 15 to 20-pound line, and large lures—crankbaits, bucktail spinners, and soft plastics in the 5 to 10-inch range. Expect to cast for hours without a strike; musky fishing is a specialized pursuit that rewards patience and persistence.

Do I need a special license or stamp to fish Rhinelander Flowage?

A standard Wisconsin fishing license is required. No special stamp or permit is needed for the flowage itself, though an inland trout stamp is required if you fish trout streams in the area. Licenses are sold online and at local bait shops.