Third Lake
Trempealeau County, Wisconsin
About Third Lake
Third Lake earns its reputation as one of Trempealeau County's premier walleye fisheries, a intimate 35-acre lake reaching 8 feet at its deepest. The lake has public boat landing access, making it easy to launch for a day on the water. The fishery includes Largemouth Bass, Northern Pike, and Panfish. Note that invasive species (Curly-Leaf Pondweed) have been documented here — clean your boat before leaving.
Bottom composition: 98% sand, 0% gravel, 0% rock, 2% muck
Type: lake · Hydrology: DRAINAGE
Lake Location
43.99290° N, 91.41090° W
WBIC 728700 · Wisconsin DNRFish Species
Full table →Fishing Tips
- ·Walleye feed most actively at dawn and dusk. Jig along deep structural breaks or troll crankbaits along weedlines at 6–8 ft depth.
- ·Night fishing under a full moon can produce excellent walleye results from late June through August.
- ·Northern pike are ambush predators — target weed edges, fallen timber, and points with large spoons or swimbaits.
- ·Spring pike fishing (ice-out through June) can be outstanding as they move into shallow, warming bays to spawn.
- ·Largemouth bass relate to shallow structure. Work topwater lures at dawn in summer, then switch to soft plastics rigged weedless around lily pads and fallen wood.
- ·Bluegill and crappie stack up in 8–15 ft of water near weedlines. Small jigs tipped with a waxworm are hard to beat.
- ·Panfish are often excellent for kids and beginners — look for them around any dock or submerged brush piles.
Local's Guide
Fishing
Species-specific tips above. Wisconsin fishing license required for ages 16+. See current season regulations below.
View fishing regulations ↓Swimming
Third Lake has limited visibility and a gravel and sand bottom, making it better suited for boating and fishing than swimming. The 35-acre lake offers a quieter, more intimate swimming experience.
Nearby Dining
Local dining recommendations for Third Lake are coming soon. Know a great spot near Third Lake? Share it at staynorthern.com/contact. Looking for restaurants near Trempealeau County lakes? Visit staynorthern.com/eats for our full northwoods dining guide.
Insider Tips
Third Lake is one of Trempealeau 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 Third Lake 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
Present
Curly-Leaf Pondweed
Seasonal Notes
See below
Ice-out dates, peak fishing windows
Ice out arrives in late March to early April on southern Wisconsin lakes. Bass and panfish fishing is excellent from early May onward. Swimming season runs from early June through September. Fall color peaks in mid-October. Ice fishing is possible in most winters but season length varies — check conditions before heading out.
Condition data sourced from Wisconsin DNR surveys. Real-time weed and clarity reports coming soon.
Invasive Species Present
Curly-Leaf Pondweed has been documented in Third Lake. Clean, drain, and dry all watercraft and equipment before leaving.
Report sightings to the Wisconsin DNR invasive species hotline.Frequently Asked Questions
What fish can you catch in Third Lake?
Third Lake is home to Largemouth Bass (Common), Northern Pike (Common), Panfish (Common), and Walleye. Wisconsin fishing regulations apply — check current seasons and size limits before heading out.
Is there a public boat launch on Third Lake?
Yes — Third Lake has 2 boat landings providing watercraft access. Check for posted local ordinances at the landing before launching.
How big is Third Lake?
Third Lake has 35 acres in surface area, a maximum depth of 8 feet, a mean depth of 4 feet.
What is the bottom of Third Lake like?
The lake bottom is composed of 98% sand, 0% gravel, 0% rock, 2% muck. Sandy and gravel bottoms typically support good swimming and healthy fish habitat.
Are there invasive species in Third Lake?
Yes — Curly-Leaf Pondweed has been documented in Third Lake. Please clean, drain, and dry your watercraft and all equipment before leaving any Wisconsin water body to prevent the spread of invasive species.
Where is Third Lake located?
Third Lake is located in Trempealeau County, Wisconsin. GPS coordinates: 43.9929° N, 91.4109° W.
Are there vacation rentals on Third Lake?
Stay Northern is building the most complete rental directory for Trempealeau County lakes. Check our Third Lake vacation rentals listing — if none are available yet, check back soon or browse nearby Trempealeau County lake rentals.
Fishing Regulations
Current season regulations for Third Lake
Regulation data is not available for this lake. Check with the Wisconsin DNR for current season rules before fishing.
Regulations sourced from Wisconsin DNR fisheries data. Always verify current regulations before fishing.
Lake Details
- WBIC
- 728700
- County
- Trempealeau County
- Surface Area
- 35 acres
- Max Depth
- 8 ft
- Mean Depth
- 4 ft
- Bottom
- 98% sand, 0% gravel, 0% rock, 2% muck
- Lake Type
- lake
- Coordinates
- 43.9929, -91.4109
Boat Rentals Nearby
Pontoon
Listing soonFishing Boat + Motor
Listing soonKayak / Canoe
Listing soonKnow a local boat rental operator near Third Lake? Let us know.
Boat Landings (2)
NA · NA
NA · NA
Lake data sourced from the Wisconsin DNR. Last updated 4/30/2026.