The Boundary Waters Border Route starts on the western side of the Boundary Waters Canoe Area (BWCA) at Crane Lake in Voyageurs National Park. It follows the Minnesota/Ontario border for about 200 miles until the Grand Portage, a 8.5-mile portage to Lake Superior. Most paddlers can complete the trip in two to three weeks. This fall I joined the Wilderness Classroom to photograph part of their three-year, 12,000-mile trip across North America by canoe, kayak and dog sled. I met them at Crane Lake on the western side of the BWCA and paddled the Boundary Waters Border Route with them. It took us 17 days and included a three-day visit…