The Mittalmar was the central province of Númenor, containing Arandor (or 'Kings'-land'), which itself was the most populous part of the realm. The land was Númenor's main pastoral land and consisted mainly of grasslands and like most of Númenor it had a humid climate with mild winters. It was oval in shape and ran about two-hundred miles from east to west and over one-hundred and fifty miles from north to south. In its near center was the mountain of Meneltarma, the Pillar of Heaven. Its two main rivers Nunduinë and Siril (Númenor's only ones) were present mostly in this region.