The Lands of the Last Desert
The Last Desert (Av."Mitarkilís"; Tyr. "Klehûkh") was a vast desert land covering much of the eastern parts of Central Middle-earth. The western parts evolved into the more fertile Lands of Palisor while the eastern parts strechted to the foothills of the Orocarni.
The Last Desert was rumoured to have been home to the last Were-Worms.