Spanning across Anchorage in south central Alaska and stretching to the Western coast of the Bering Sea, each team of twelve to sixteen huskies and their musher cover a huge distance of 1150 miles in ten to seventeen days. Rick Swenson of Alaska won Iditarod five times and Susan Butcher is the only woman to have won it on four occasions. It is organized by thousands of volunteers who make arrangements for medical equipments supplies, food stocks and veterinarians. The now historic Iditarod begun as a mail supply route from coastal towns like Seward and Knik to interior mining camps. Almost every year one dog dies on IditaRod. However, today dogs are equipped with microchips in order to track them easily. This is truly the toughest race on Earth.