6390 - Great Bear Lake | Canadian Arctic Nautical Map

The Canadian Hydrographic Service (CHS) Chart 6390 is the official, government-authorized marine navigation chart for Great Bear Lake in the Northwest Territories—the largest lake located entirely within Canada. Designed to meet the stringent needs of commercial shippers, local supply barges, research vessels, and wilderness adventurers, this high-precision navigational chart provides comprehensive "ground-truth" oceanographic data for planning routes and safely navigating these immense subarctic waters.

Key Features & Hydrographic Data Included:

• Vast Lake-Wide Coverage: Delivers detailed charting across the expansive waters of Great Bear Lake, covering key regions, bays, and remote island passages.

• Official Bathymetric & Seafloor Data: Features precise localized depth soundings, undersea contours, low-water datum reference points, and crucial warning markers for shoals, shallow reefs, and submerged hazards.

• Essential Aids to Navigation: Explicitly details official Canadian Coast Guard marine buoys, warning lights, daybeacons, compass roses, and shore-based landmark references to assist with safe piloting in remote northern conditions.

• High-Contrast Multi-Light Legibility: Printed with premium, high-contrast marine inks specifically formulated to remain perfectly clear and readable under intense Arctic summer daylight or dim wheelhouse red-lamp environments.

• Official Marine Compliance: Fully satisfies vessel carriage regulations and Canada Shipping Act requirements for commercial and recreational operators requiring official, approved hydrographic documentation for the Northwest Territories.