Grand Portage State Park
Grand Portage State Park is a state park in Cook County. It was established in 1989. 8 graded lakes are within 15 miles of the park, including Teal Lake Deep, Little Lake Deep, Little Lake Inlet.
Grand Portage 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. 8 graded lakes are within easy reach of the park, with an average grade of D. Little Lake Deep (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 Grand Portage State Park, weighted by size. Click a lake for its full water quality grade, fish species, and depth.
| Lake | County | Grade | Surface Area | Distance |
|---|---|---|---|---|
| Teal Lake Deep | Cook | C | - | 2.5 mi |
| Little Lake Deep | Cook | B | - | 3.5 mi |
| Little Lake Inlet | Cook | F | - | 3.5 mi |
| Little Lake Landing | Cook | F | - | 3.5 mi |
| Mt Maud Lake | Cook | C | - | 6.3 mi |
| Dutchman Lake Deep | Cook | D | - | 6.4 mi |
| Mt Maud Lake Mid Basin | Cook | F | - | 6.5 mi |
| Dutchman Lakelanding | Cook | F | - | 6.5 mi |
Other Parks in the Area
- Judge C. R. Magney State Park— State Park, 23.4 mi
- Cascade River State Park— State Park, 47 mi
Source: EPA National Aquatic Resource Surveys, 2026.