6431 - East Channel, Lousy Point to Tuktoyaktuk | Mackenzie River Nautical Map

The Canadian Hydrographic Service (CHS) Chart 6431 is an official, government-authorized nautical navigation chart engineered for commercial tug and barge captains, supply fleets, northern pilots, and river expeditionists. This vital hydrographic publication covers Kilometres 1710 to 1766 of the Mackenzie River system, mapping the critical transition route through the East Channel from Lousy Point to Tuktoyaktuk as the river meets Kugmallit Bay and the Beaufort Sea in Canada's Northwest Territories.

Key Features & Hydrographic Data Included:

• Mackenzie River to Arctic Coast Charting: Delivers seamless, high-precision coverage of main channels, coastal approaches, bank contours, and island passages between Lousy Point and the port of Tuktoyaktuk.

• Official Riverine & Coastal Bathymetry: Features accurate localized depth soundings, channel flow vectors, low-water datum reference levels, and essential hazard markers for shallow gravel bars, mudflats, and coastal shoals.

• Essential Aids to Navigation: Explicitly details official Canadian Coast Guard river buoys, range markers, daybeacons, compass roses, and shore-based landmark references for safe piloting into harbour.

• High-Contrast Multi-Light Legibility: Printed with premium, high-contrast marine inks specifically formulated to remain clear and easily readable in direct subarctic sunlight or low-light wheelhouse conditions.

• Official Marine Compliance: Fully satisfies mandatory vessel carriage regulations and Canada Shipping Act requirements for commercial transport and resource vessels operating on the Mackenzie River and Arctic approaches.