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In page Ulaanbaatar:

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Human habitation at the site of Ulaanbaatar dates from the Lower Paleolithic, with a number of sites on the Bogd Khan, Buyant-Ukhaa and Songinokhairkhan mountains, revealing tools which date from 300,000 years ago to 40,000–12,000 years ago. These Upper Paleolithic people hunted mammoth and woolly rhinoceros, the bones of which are found abundantly around Ulaanbaatar.[citation needed]