"The Border Route Trail is a 65-mile (105 km) long hiking trail that crosses the Boundary Waters Canoe Area Wilderness (BWCAW) in the far northeast corner of Minnesota (Arrowhead) and follows the international border between Minnesota and Ontario, Canada. It connects with the Superior Hiking Trail on its eastern terminus and with the Kekekabic Trail on its western end at the Gunflint Trail (Cook Cty. Road 12). In addition to the eastern and western termini, the Border Route Trail can be accessed through several spur and connecting trails, allowing for hiking trips ranging from short day-hikes to multiday backpacking expeditions."
For information on trails in this area see: http://www.ontariotrails.on.ca/trail-regions/northwestern-ontario/