The Tibbitt to Contwoyto Winter Road (TWCR) is North America’s largest ice road network that direct supports the operating diamond mines in the Northwest Territories. Operated by a Joint Venture between the Diavik Diamond Mines Inc, Dominion Diamond Mines ULC and De Beers Canada Inc., the ice road has an annual operating budget of $21 to 22 Million. The ice road is built through advanced flooding technologies, ice profiling radar and quality assurance engineering. Overseen by the Joint Venture, the ice road is constructed and maintained by 170 experienced personnel, 24 hours a day, operating out of three camps. Over the past five years, a yearly average of 8336 loads (281,363 tons) were transported using the Tibbitt to Contwoyto Winter Road. The TCWR Joint Venture is a unique example of collaboration in the North's mining industry and represents a critical lifeline to the success of the NWT's diamond mines.