Celebrate the BWCAW, one letter at a time. The Boundary Waters Canoe Area Wilderness is a pristine place. Whether your memory is a backcountry camping adventure or a chance moose encounter, this book written by Wes Erwin and illustrated by Kathie Kemp will help you share the beauty of the Boundary Waters with your child, one letter at a time. They will come to love and preserve this great American wilderness.