Up the Gunflint Trail, the Flour Lake Campground has 37 sites, picnic tables, fishing, fire grates, toilets, are first come-first served, drinking water, are RV accessible (limited length, no hook-ups, though) and fee charged. Great fishing lake, near Honeymoon Bluff hiking trail. Details here.
From Hwy 61, north 27 miles on Gunflint Trail (Co. Rd. 12), east 2 miles on Clearwater Rd.