Ernest de Koven Leffingwell, Date of Birth, Place of Birth, Date of Death

Ernest de Koven Leffingwell

American geologist and explorer

Date of Birth: 13-Jan-1875

Place of Birth: Knoxville, Illinois, United States

Date of Death: 27-Jan-1971

Profession: geologist, geographer, explorer

Nationality: United States

Zodiac Sign: Capricorn

Ernest de Koven Leffingwell (January 13, 1875 – January 27, 1971) was an arctic explorer, geologist and Spanish–American War veteran. During the period from 1906 to 1914, Leffingwell spent 9 summers and 6 winters on the Arctic coast of Alaska, making 31 trips by dog sled and/or small boats.
He created the first accurate map of a large part of the Alaskan arctic coastline.
He was the first to scientifically describe permafrost and to pose theories about permafrost which have largely proven true.
He accurately identified the oil potential of the North Slope region of Alaska.