Document 1- 

Document 2- Denali (formerly known as "Mount McKinley") is the highest mountain peak in North America (6,190 m)

Document 3- In this photo provided by NASA, The eruption of the Cleveland Volcano is seen as photographed by an Expedition 13 crewmember on the International Space Station May 23, 2009 in the Aleutian Islands, Alaska. The Cleveland Volcano has erupted again yesterday sending a cloud of ash 15,000 feet into the sky according to reports on December 30, 2011.

Document 4- Alaska's landscape is diverse ....

Document 5- Alaska national parks ... and main cities ....