Browsing by Author "Pickering, P."

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    Ngorongoro’s geological history
    (Ngorongoro Conservation Unit, 1968) Pickering, P.; Fosbrooke, H. A
    Many readers of this series will it is hoped buy these booklets in the course of their visits to Ngorongoro, but for those who like to read about a place before they go there, or who are interested in the area but unable to visit it, the following general notes should prove of interest. Ngorongoro is a volcanic crater, or more properly caldera, situated in the Arusha Region of Tanzania, approximately 35c30' East and 3°15' South, being 112 miles west of Arusha and 290 miles by road from Nairobi. The average height of the rim is about 7.600 feet and of the floor 5,600 feet, giving a depth of 2,000 feet, with a diameter ranging between 10 and 12 miles, and a floor of 102 square miles. It has been claimed that this makes it the largest caldera in the world, but Prof. Tamura, Chairman of the Nature Conservation Society of Japan and a member of the Ngorongoro Advisory Board, has kindly provided the information about the world's largest calderas.