The Rocky Mountains Region, popularly known as the Rockies, is a broad mountain range, which are generally divided into four broad groupings including the Canadian Rockies and Northern Rockies of Montana, and Northeast Idaho. Stretching more than 3,000 miles from British Columbia to Mexico, the Rockies form the Continental Divide, sometimes known as the backbone of North America. Minerals found in the Rocky Mountains include significant deposits of copper, gold, lead, molybdenum, silver, tungsten, and zinc. Public parks and forest lands protect much of the mountain range, and they are popular tourist destinations, especially for hiking, camping, mountaineering, fishing, hunting, mountain biking, skiing, and snowboarding.