Wyoming is a state located in the western United States. Its population in 2015 was around 586,107 people. The climate is generally semi-arid and continental. Some of the largest cities include Cheyenne, Casper, and Laramie. Wyoming's economy relies on electricity generation from wind farms, coal mining, and natural gas drilling. Popular tourist attractions include Yellowstone National Park, Grand Teton National Park, Devils Tower National Monument, and scenic areas like Lamar Valley and Artist Point. Famous people from Wyoming include actors Harrison Ford and Matthew Fox.