Chippewa National forest. Some of the biggest lakes in the state with lots of nice campgrounds and resorts on them. Lake Winnebegoshish (aka Winnie), Leech lake, Cass Lake, Norway beach Campground, Itasca State Park is the headwaters of the mighty Mississippi. The river is only a few feet across at its start and only a foot deep. Scenic State Park, several National Scenic Byways like Edge of the Wilderness, Avenue of the Pines, ladyslipper Scenic Byway. All the state parks and the National forest have Campgrounds.
Casinos in Walker, Cass Lake, Red Lake, Tower, MN. Also in Cloquet (but that is in NE MN, just south of Duluth.)