Rade Lake Retreat ~ Rade Lake Retreat is just 10 minutes north of Eagle River. Take Hwy. 45/17 north out of Eagle River until Hwy. 17 makes a sharp right turn to the east. Take Hwy. 17 to Columbus Road. Turn north onto Columbus and follow it past The Frontier Tavern. About 50 yards past the bar, Columbus will turn into a dirt road called Shan-gri-la. Turn right into the driveway at 4121 Shan-gri-la and follow the driveway to the left until you see the home on your right.