Port and city in Northern Harad, built by evil Numenoreans in the second age and later a
base for the Corsairs of Umbar (although some renditions place the Corsair
base near to, rather than in, Umbar).
The city is marked on Middle Earth maps drawn by Tolkien, in contrast to most of Harad. The city
name is Elvish, as befits its origin among Dunedain. (Haradrim
name-forms are not given in Tolkien... I wonder why...). It also occurs in most of the Tolkien strategy games, though way
outside where any action is likely to be.
Presumably fortified. Some fans have drawn detailed maps which can be found by doing a Google search - usually showing a fortified city with a number of inner levels, similar to other Numenorean cities such as Minas Tirith.