Alaska is the largest state in the United States, located in the northwest of North America. It was purchased from Russia in 1867 and became a state in 1959. Alaska has a varied climate from warm summers to cold winters. The state relies heavily on industries like fishing, mining, and tourism. Some of its major cities are Anchorage, Juneau, and Fairbanks. Alaska is home to over 100 active volcanoes and is known for natural attractions like the Northern Lights.