Minnesota anglers fishing Lake of the Woods and other Canadian lakes often travel in fear of hitting rocks that will shear off their outboard's lower unit or otherwise wreck their boats. Digital maps available for fishing electronics are fine. But the most exacting nautical maps for Canadian waters are available from www.maptown.com. Maps on CD- ROMs or paper are available. The $50 price is cheap for peace of mind. Phone 1-877-921-6277.