About North Townline Flowage
North Townline Flowage is a scenic Marathon County lake worth knowing about, a mid-sized lake at 123 acres and up to 9 feet deep. Access is limited, which keeps boat traffic low — a plus for solitude seekers.
Bottom composition: 60% sand, 0% gravel, 0% rock, 40% muck
Type: flowage · Hydrology: DRAINED
Lake Location
44.71340° N, 89.84740° W
WBIC 1415100 · Wisconsin DNRLocal's Guide
Fishing
Species-specific tips above. Wisconsin fishing license required for ages 16+. See current season regulations below.
View fishing regulations ↓Swimming
North Townline Flowage has limited visibility and a gravel and sand bottom, making it better suited for boating and fishing than swimming. The 123-acre lake offers a quieter, more intimate swimming experience.
Nearby Dining
Local dining recommendations for North Townline Flowage are coming soon. Know a great spot near North Townline Flowage? Share it at staynorthern.com/contact. Looking for restaurants near Marathon County lakes? Visit staynorthern.com/eats for our full northwoods dining guide.
Insider Tips
North Townline Flowage is one of Marathon County's lesser-known gems — the kind of place locals return to year after year. Early mornings before 9am offer the calmest water and best fishing before boat traffic picks up. If you're visiting for the first time, check the DNR boat landing locations before you arrive — some are well-marked, others take a local to find. Know something about North Townline Flowage that visitors should? Share a tip at staynorthern.com/contact — we add the best ones to this page.
Lake Conditions
Water Clarity
—
No data
Trophic Status
—
No data
Invasive Weeds
Not documented
Clean lake
Seasonal Notes
See below
Ice-out dates, peak fishing windows
Ice out typically arrives in mid-April on central Wisconsin lakes. Fishing season hits its stride in mid-May and runs strong through June and again in fall. Swimming conditions are best from late June through mid-August. Fall color peaks in early-to-mid October. Ice fishing season runs late December through February in most years.
Condition data sourced from Wisconsin DNR surveys. Real-time weed and clarity reports coming soon.
Frequently Asked Questions
Can you boat on North Townline Flowage?
North Townline Flowage does not currently have a public boat landing listed in the Wisconsin DNR database. Shore fishing or kayak/canoe access may still be available — check local access points.
How big is North Townline Flowage?
North Townline Flowage has 123 acres in surface area, a maximum depth of 9 feet.
What is the bottom of North Townline Flowage like?
The lake bottom is composed of 60% sand, 0% gravel, 0% rock, 40% muck. Sandy and gravel bottoms typically support good swimming and healthy fish habitat.
Are there invasive species in North Townline Flowage?
No invasive species are currently documented in North Townline Flowage by the Wisconsin DNR. Always clean, drain, and dry your boat before leaving to help protect this lake.
Where is North Townline Flowage located?
North Townline Flowage is located in Marathon County, Wisconsin. GPS coordinates: 44.7134° N, 89.8474° W.
Are there vacation rentals on North Townline Flowage?
Stay Northern is building the most complete rental directory for Marathon County lakes. Check our North Townline Flowage vacation rentals listing — if none are available yet, check back soon or browse nearby Marathon County lake rentals.
Fishing Regulations
Current season regulations for North Townline Flowage
| Species | Season | Min. Length | Daily Bag |
|---|---|---|---|
| Bullheads | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Catfish | Open All Year | No minimum length limit and the daily bag limit is 10. | — |
| Cisco And Whitefish | Open All Year | No minimum length limit and the daily bag limit is 10. | — |
| Lake Sturgeon | Closed | No fishing allowed. | — |
| Largemouth Bass And Smallmouth Bass | May 2, 2026 to March 7, 2027 | The minimum length limit is 14" and the daily bag limit is 5. | — |
| Muskellunge And Hybrids | May 2, 2026 to December 31, 2026 on open water | The minimum length limit is 40" and the daily bag limit is 1. | — |
| Northern Pike | May 2, 2026 to March 7, 2027 | No minimum length limit and the daily bag limit is 5. | — |
| Paddlefish | Closed | No fishing allowed. | — |
| Panfish | Open All Year | No minimum length limit and the daily bag limit is 25. | — |
| Rock, Yellow, And White Bass | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Rough Fish | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Round Goby | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
| Ruffe | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
| Shovelnose Sturgeon | Closed | No fishing allowed. | — |
| Trout | See specific regulations | https://dnr.wisconsin.gov/topic/fishing/trout/ . | — |
| Walleye, Sauger, And Hybrids | May 2, 2026 to March 7, 2027 | The minimum length is 15", but walleye, sauger, and hybrids from 20" to 24" may not be kept, and only 1 fish over 24" is allowed. The daily bag limit is 3. | — |
| White Perch | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
Regulations sourced from Wisconsin DNR fisheries data. Always verify current regulations before fishing.
Lake Details
- WBIC
- 1415100
- County
- Marathon County
- Surface Area
- 123 acres
- Max Depth
- 9 ft
- Bottom
- 60% sand, 0% gravel, 0% rock, 40% muck
- Lake Type
- flowage
- Coordinates
- 44.7134, -89.8474
Boat Rentals Nearby
Pontoon
Listing soonFishing Boat + Motor
Listing soonKayak / Canoe
Listing soonKnow a local boat rental operator near North Townline Flowage? Let us know.
Lake data sourced from the Wisconsin DNR. Last updated 4/29/2026.