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LakeQuality
Sunset over the pine treeline on Slim Lake, the sun reflected on light chop

Tower Hill State Park

Tower Hill State Park is a state park in Iowa County. It was established in 1922. 8 lakes with water-quality readings 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 measured lakes are within easy reach of the park. Bakkens Pond has the lowest nutrient and algae readings 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 readings for that lake give you the clarity, nutrient, and algal-pressure context you need.

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Designation
State Park
County
Iowa County
Established
1922

Nearby Lakes (within 15 mi)

Lakes closest to Tower Hill State Park, weighted by size. Click a lake for its water-quality readings, fish species, and depth.

LakeCountySurface AreaDistance
Helen LakeIowa16 acres1.6 mi
Hill Slough LakeSauk-2.8 mi
Bakkens PondSauk60 acres5.1 mi
Cruson Slough LakeRichland80 acres10.1 mi
Long LakeSauk-6.7 mi
Black Hawk LakeIowa212 acres14.5 mi
White Mound LakeSauk93 acres14.8 mi
Avoca LakeIowa63 acres14 mi

Other Parks in the Area

Park location and metadata sourced from Wikidata. For trail maps, camping reservations, and current conditions, visit the official WI DNR page. Lake readings come from the EPA Water Quality Portal and are shown beside the EPA National Lakes Assessment condition class for the lake's ecoregion. Secchi clarity is shown, not classified.

Where to stay near Tower Hill State Park

Compare cabins, hotels, and vacation rentals near Tower Hill State Park — find a place to stay close to the park and its nearby lakes.

Top-rated places to stay near Tower Hill State Park

Prices for Sep 18–20, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

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Source: EPA National Aquatic Resource Surveys, 2026.