Fort Ridgely State Park
Fort Ridgely State Park is a state park in Nicollet County, Renville County. It was established in 1911. 3 graded lakes are within 15 miles of the park, including Sleepy Eye Lake, Unnamed Lake, Lower Sioux Hank Lake.
Fort Ridgely State Park is a Minnesota State Park covering an unrecorded acreage acres. State parks are the most heavily-developed of the public-land designations — campground, picnic, boat-launch, interpretive-center. 3 graded lakes are within easy reach of the park, with an average grade of F. Sleepy Eye Lake (D) 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 Fort Ridgely State Park, weighted by size. Click a lake for its full water quality grade, fish species, and depth.
| Lake | County | Grade | Surface Area | Distance |
|---|---|---|---|---|
| Sleepy Eye Lake | Brown | D | 227 acres | 10 mi |
| Unnamed Lake | Brown | F | - | 7.2 mi |
| Lower Sioux Hank Lake | Redwood | F | - | 13.7 mi |
Other Parks in the Area
- Flandrau State Park— State Park, 16.8 mi
- Minneopa State Park— State Park, 36.8 mi
- Upper Sioux Agency State Park— State Park, 40.9 mi
- Greenleaf Lake State Recreation Area— State Recreation Area, 41.1 mi
Source: EPA National Aquatic Resource Surveys, 2026.