Lakes and Rivers of British Columbia - Raster BSB Digital Canadian Hydrographic Charts, issued by the Canadian Hydrographic Service. Features: Charts quality controlled and approved by Canadian Hydrographic Service Authorized replicas of official Canadian government paper hydrographic charts BSB 4 Format GPS ready Requires Navigational Software. Not GIS compatible. Web Activation 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.