Alaska is situated on the tip of the Seward Peninsula in the northwest part of the North America. It is the biggest state of the USA, but has least dense population.

The sparse population of Alaska is mostly due to its severe climate and geographical features. This state is quite mountainous, but the highest ranges are The Brook Range in the north of the state and The Alaska Range in the south. Alaska's highest point is Mt. McKinley, which is located in the Alaska Range. It is 20 320 feet (6 194 cm) above the sea level which makes it the highest mountain peak of the North America.

The major river is the Yukon River. It flows across the whole Alaska from northeast to northwest and is one of the longest navigable rivers in the world. Other rivers include the Kuskokwim River, the Colville River and the Copper River. The principal lakes...