About Big Cat Slough
Big Cat Slough offers the classic northern Wisconsin combo: northern pike and bass in a Grant County setting that draws anglers and families alike, a intimate 3-acre lake reaching 4 feet at its deepest. Access is limited, which keeps boat traffic low — a plus for solitude seekers. Anglers primarily target Panfish.
Bottom composition: 90% sand, 0% gravel, 0% rock, 10% muck
Type: lake · Hydrology: SEEPAGE
Lake Location
43.19580° N, 90.45210° W
WBIC 1215100 · Wisconsin DNRFish Species
Full table →Fishing Tips
- ·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
Big Cat Slough has limited visibility and a gravel and sand bottom, making it better suited for boating and fishing than swimming. The 3-acre lake offers a quieter, more intimate swimming experience.
Nearby Dining
Local dining recommendations for Big Cat Slough are coming soon. Know a great spot near Big Cat Slough? Share it at staynorthern.com/contact. Looking for restaurants near Grant County lakes? Visit staynorthern.com/eats for our full northwoods dining guide.
Insider Tips
Big Cat Slough is one of Grant 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 Big Cat Slough 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 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.
Frequently Asked Questions
What fish can you catch in Big Cat Slough?
Big Cat Slough is home to Largemouth Bass, Northern Pike, and Panfish (Common). Wisconsin fishing regulations apply — check current seasons and size limits before heading out.
Can you boat on Big Cat Slough?
Big Cat Slough 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 Big Cat Slough?
Big Cat Slough has 3 acres in surface area, a maximum depth of 4 feet.
What is the bottom of Big Cat Slough like?
The lake bottom is composed of 90% sand, 0% gravel, 0% rock, 10% muck. Sandy and gravel bottoms typically support good swimming and healthy fish habitat.
Are there invasive species in Big Cat Slough?
No invasive species are currently documented in Big Cat Slough by the Wisconsin DNR. Always clean, drain, and dry your boat before leaving to help protect this lake.
Where is Big Cat Slough located?
Big Cat Slough is located in Grant County, Wisconsin. GPS coordinates: 43.1958° N, 90.4521° W.
Are there vacation rentals on Big Cat Slough?
Stay Northern is building the most complete rental directory for Grant County lakes. Check our Big Cat Slough vacation rentals listing — if none are available yet, check back soon or browse nearby Grant County lake rentals.
Fishing Regulations
Current season regulations for Big Cat Slough
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
- 1215100
- County
- Grant County
- Surface Area
- 3 acres
- Max Depth
- 4 ft
- Bottom
- 90% sand, 0% gravel, 0% rock, 10% muck
- Lake Type
- lake
- Coordinates
- 43.1958, -90.4521
Boat Rentals Nearby
Pontoon
Listing soonFishing Boat + Motor
Listing soonKayak / Canoe
Listing soonKnow a local boat rental operator near Big Cat Slough? Let us know.
Lake data sourced from the Wisconsin DNR. Last updated 4/29/2026.