Hill Annex Mine State Park
Hill Annex Mine State Park is a state park in Itasca County. It was established in 1988. 8 graded lakes are within 15 miles of the park, including Swan Lake, North Twin Lake, South Twin Lake.
Hill Annex Mine State Park State Park spans an unrecorded acreage acres in Minnesota — a designated recreation destination with the full set of facilities the state park system provides. The park is paired with 8 graded lakes nearby — enough for a multi-lake visit. Average grade among them: B.
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 Hill Annex Mine State Park, weighted by size. Click a lake for its full water quality grade, fish species, and depth.
| Lake | County | Grade | Surface Area | Distance |
|---|---|---|---|---|
| Swan Lake | Itasca | A | 2,456 acres | 4.5 mi |
| North Twin Lake | Itasca | B | 239 acres | 3.1 mi |
| South Twin Lake | Itasca | B | 141 acres | 3.7 mi |
| O'Brien Lake | Itasca | B | 539 acres | 6.3 mi |
| Trout Lake | Itasca | A | 1,862 acres | 8.4 mi |
| Little Sand Lake | Itasca | B | 210 acres | 5.8 mi |
| Dunning Lake | Itasca | A | - | 3.6 mi |
| Lower Lawrence Lake | Itasca | D | 152 acres | 7.3 mi |
Other Parks in the Area
- McCarthy Beach State Park— State Park, 25.8 mi
- Schoolcraft State Park— State Park, 26.1 mi
- Scenic State Park— State Park, 30.2 mi
- Savanna Portage State Park— State Park, 34.8 mi
Where to stay near Hill Annex Mine State Park
Compare cabins, hotels, and vacation rentals near Hill Annex Mine State Park — find a place to stay close to the park and its nearby lakes.
Top-rated places to stay near Hill Annex Mine State Park
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Source: EPA National Aquatic Resource Surveys, 2026.