Cross country ski area. Main loops and one connector marked for Summer use. Some of the others have bicycle signs, so?? Not much technical challenge, but good bit of climbing. Intersections marked with colored arrows and pretty good map at TH.
US 169 East from Ely, MN. R (E) on Hidden Vally Rd for about 2miles to ski hill parking.
http://www.singletracks.com/item.php?c=1&i=7055