In terms of flow, the Copper River is the tenth largest river in the USA. It is about 287 miles long. Starting at the Copper Glacier on the shoulder of Mount Wrangell, it runs 287 miles and meets the Gulf of Alaska near Cordova. The Copper River watershed covers 24,000 square miles. It is famous for the two million salmon that run up river each year to spawn.
Alaska is the largest state in the United States by area. It is situated in the northwest extremity of the North American continent, with Canada to the east, the Arctic Ocean to the north, and the Pacific Ocean to the west and south, with Russia further west across the Bering Strait. Approximately half of Alaska's 710,231 residents (as per the 2010 United States Census) live within the Anchorage metropolitan area. Alaska is the least densely populated state of the U.S.Source: http://en.wikipedia.org/wiki/Alaska