Tibbitt to Contwoyto Winter Road

The Tibbitt to Contwoyto Winter Road operates for roughly 10 weeks each winter as the world’s longest heavy-haul ice road, spanning 400 kilometers from the end of Highway 4 near Yellowknife to the Contwoyto Lake area diamond mines. This industrial lifeline consists of approximately 87% lake ice and 13% land portages, crossing dozens of frozen lakes connected by short overland sections. Massive transport trucks haul a year’s worth of supplies to remote mines including Ekati and Diavik, while the road remains open to public travel during operating season.

This is extreme Arctic driving requiring winter survival preparation and ice road experience. The route operates only when ice thickness exceeds safety minimums, typically February through April. Public travelers must register and carry emergency equipment including sleeping bags rated to -40°F, extra food, and communication devices. Speed limits are strictly enforced to prevent ice damage, and vehicles must maintain specific following distances. The experience offers access to Canada’s most remote mining frontier and the ultimate test of winter driving skills across the barren beauty of the central Arctic.