Description: Map of Europe, showing the great sheet of ice that covered the British Isles, Scandinavia, Germany, and half of Russia during the second Glacial Age.
Source: Gilbert H. Grosvenor, ed., The National Geographic Magazine An Illustrated Monthly (Washington, DC: Judd & Detweiler Inc. , 1916) 115
Map Credit: Courtesy the private collection of Roy Winkelman |
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