These detailed electronic nautical charts look just like paper charts when displayed on your Garmin chartplotter. Features include shading between depth contours, spot soundings, navaids, port plans, wrecks, obstructions, inter-tidal zones, and more. BlueChart offers much larger coverage areas for half the price.
MapSource BlueChart Lake Michigan provides detailed coverage of Lake Michigan in its entirety and northern Lake Huron from Cheboygan, MI, to Blind River, Ont., including Sault Ste. Marie and Cockburn Island.