Tower Hill State Park
Tower Hill State Park is a state park in Iowa County. It was established in 1922. 8 graded lakes are within 15 miles of the park, including Helen Lake, Hill Slough Lake, Bakkens Pond.
Tower Hill State Park is a Wisconsin State Park covering 19,027 acres. State parks are the most heavily-developed of the public-land designations — campground, picnic, boat-launch, interpretive-center. 8 graded lakes are within easy reach of the park, with an average grade of C. Cruson Slough Lake (B) is the cleanest of the set.
For visitors planning around water quality, the nearby-lakes list below is the practical tool: a park is only as good as the lake you intend to use it from, and the LakeGrade for that lake gives you the water-clarity, nutrient, and algal-pressure context you need.
Official Resources
Nearby Graded Lakes (within 15 mi)
Lakes closest to Tower Hill State Park, weighted by size. Click a lake for its full water quality grade, fish species, and depth.
| Lake | County | Grade | Surface Area | Distance |
|---|---|---|---|---|
| Helen Lake | Iowa | C | - | 1.6 mi |
| Hill Slough Lake | Sauk | C | - | 2.8 mi |
| Bakkens Pond | Sauk | C | 60 acres | 5.1 mi |
| Cruson Slough Lake | Richland | B | 80 acres | 10.1 mi |
| Long Lake | Sauk | C | - | 6.7 mi |
| Black Hawk Lake | Iowa | B | 220 acres | 14.5 mi |
| White Mound Lake | Sauk | C | 104 acres | 14.8 mi |
| Avoca Lake | Iowa | D | - | 14 mi |
Other Parks in the Area
- Governor Dodge State Park— State Park, 8.9 mi
- Blue Mound State Park— State Park, 12.8 mi
- Natural Bridge State Park— State Park, 14.9 mi
- Devil's Lake State Park— State Park, 25.1 mi
Source: EPA National Aquatic Resource Surveys, 2026.