Boundary Waters Canoe National Wildlife Reserve
Boundary Waters Canoe National Wildlife Reserve is a recognized dark sky location in Minnesota for stargazing and astronomy activities.
It is designated by DarkSky International (IDS) as a Dark Sky Sanctuary, which offer some of the darkest recognized skies.
Bortle
Boundary Waters Canoe National Wildlife Reserve is rated BORTLE CLASS 2.
For more info, see their website. See also all dark sky places in MN.