Explorers - Biography. - United States

北航,向永夜 : = 冰封在北極的一年 / by: (Language materials, printed)

King of the 40th parallel : = discovery in the American West / by: (Language materials, printed)

Cook & Peary = the polar controversy, resolved / by: (Language materials, printed)

Seeing things whole : = the essential John Wesley Powell / by: (Language materials, printed)

West (U.S.)- Environmental conditions.

Cook, Frederick Albert,

Peary, Robert E.

Simon,Alvah- Journeys- Arctic regions.

Explorers- Biography.- United States

北極- 描述與遊記

King, Clarence,

Explorers- United States

Colorado River (Colo.-Mexico)- Description and travel.

North Pole.

西門- 傳記

West (U.S.)- Description and travel.

Simon,Diana- Journeys- Arctic regions.

Inuit- Social conditions.

Arctic regions- Description and travel.

Geologists- Biography.- United States

Conservationists- Biography.- United States

Powell, John Wesley,- Philosophy.

Arid regions- West (U.S.).

Grand Canyon (Ariz.)- Description and travel.

Geological Survey (U.S.)

West (U.S.)- Discovery and exploration.