Canada is the second largest country in the world in land area, and has large mountain ranges and extensive coastlines. Tourist facilities are widely available in much of the country, but the northern and wilderness areas are less developed and facilities there can be vast distances apart. It is a highly developed stable democracy with a vibrant economy. Canada's borders extend from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean and borders the entire length of the northern United States (8,893 km), as well as Alaska (2,477 km) in the far north west. Canada's vastness stretches over six time zones. Canada became a self-governing dominion in 1867 while still retaining ties to the British crown.