Northern Tier High Adventure is a collection of high adventure bases run by the Boy Scouts of America in the Boundary Waters Canoe Area Wilderness of Minnesota, Ontario's Quetico Provincial Park and Canadian Crown Lands, Manitoba's Atikaki Provincial Wilderness Park, Woodland Caribou Provincial Park and points beyond. Northern Tier is the oldest of the four National High Adventure Bases operated by the Boy Scouts of America; the others currently in operation are Philmont Scout Ranch in New Mexico, Florida Sea Base in the Keys, and The Summit in West Virginia.