BSB V4 charts covering the Canadian side of Lake Erie from Port Colborne, including the Welland Canal to the southern entrance of the Detroit River. Contains Raster BSB V4 Electronic copies of the following paper charts; corrected to Canadian Notices to Mariners: 2012-11-09 2042, 2100, 2110, 2120, 2121, 2122, 2123, 2140 and 2181 Requires Navigational Software and is NOT GIS compatible. Web Activation is required before use, so plan ahead. Canadian electronic charts are installed via an online download with an unlock code. Purchase constitutes acceptance of the DFO Canadian Hydrographic Service End User License Agreement. Product cannot be returned for refund . See Bluewater electronic Return Policy.