Mount Ararat focus of the searches for Noah's Ark. Augustin Calmet wrote in his 1722 biblical dictionary, "It is affirmed, but without proof, that there are still remains of Noah's ark on the top of this mountain; but M. de Tournefort, who visited this spot, has assured us there was nothing like it; that the top of mount Ararat is inaccessible, both by reason of its great height, and of the snow which perpetually covers it." Archaeological expeditions, sometimes supported by evangelical and millenarian churches, have been conducted since the 19th century in search of the ark. According to a 1974 book
Geography of Turkey is known as the Anti-Taurus, where the average elevation of mountain peaks exceed 3,000 meters; while the eastern part of the region was historically known as the Armenian Highland and includes Mount Ararat, the highest point in Turkey at 5,137 meters. Many of the East Anatolian peaks apparently are recently extinct volcanoes, to judge from extensive green lava flows. Turkey's largest lake, Lake Van, is situated in the mountains at an elevation of 1,546 meters. The headwaters of three major rivers arise in the Anti-Taurus: the east-flowing Aras, which pours into the Caspian Sea; the south-flowing Euphrates; and the south-flowing