Forostar was the northern promontory of Númenor, a land of rocks, cliffs and high moors. It stretched some two hundred miles from its southern borders with the Mittalmar to its North Cape. The great road from Rómenna to Andúnië passed through its southern parts, at the place known as Ondosto.
The lands farther north, toward the Cape, became rockier and more mountainous. In the far north was a region around the peak of Sorontil, where the landscape fell sheer into the sea forming tremendous cliffs. This was the abode of Eagles, and also the dwelling-place of Meneldur Elentirmo, heir to Númenor's throne and a watcher of the stars, who built a great tower here to follow the movements of the heavens.