The northern and western Haven, Brithombar stood at the mouth of the river Brithon, from which it took its name. The Haven stood on a narrow bay that ran southwestwards into the Great Sea, and the tower of Barad Nimras was built on the headland that formed the southern extremity of this bay.
Eglarest lay some seventy-five miles to the east and south of Brithombar, built on the ravine that formed at the mouth of the river Nenning. As at Brithombar, the river's waters emptied into a long narrow inlet of the sea that led southeastwards from the Haven.