Physical Characteristics
| Surface Area (Acres) | 1,622 |
| Maximum Depth (ft) | 42 |
| Mean Depth (ft) | 21 |
| Shoreline (miles) | — |
| Bottom Composition | 75% sand, 10% gravel, 5% rock, 10% muck |
| Water Clarity — Secchi Depth (ft) | — |
| Trophic Status | — |
| Drainage Basin | DRAINAGE |
| Lake Class | lake |
| Public Access | — |
| Township | — |
| GPS Coordinates | 45.93430° N, 89.51980° W |
| WBIC (DNR ID) | 1591100 |
Fish Species
7 species documented
AbundantCommonPresentRare
| Species | Abundance | Last Survey |
|---|---|---|
| Musky | Common | — |
| Northern Pike | Common | — |
| Panfish | Common | — |
| Walleye | Common | — |
| Largemouth Bass | Present | — |
| Smallmouth Bass | Present | — |
| Trout | Present | — |
Boat Landings
1 landing
| Name | Type | Ramp | Trailers | Fee | ♿ |
|---|---|---|---|---|---|
| Big Saint Germain Lake Boat Ramp | RAMP | — | 21-25 | No | Yes |
Invasive Species
Invasive species have been documented in or near this lake. Please clean, drain, and dry all watercraft and equipment before leaving to prevent spread.
| Species | Status | First Detected |
|---|---|---|
| Banded Mystery Snail | Confirmed | — |
| Chinese Mystery Snail | Confirmed | — |
| Rusty Crayfish | Confirmed | — |
Data sourced from Wisconsin DNR lake surveys. Last scraped: 4/29/2026.