where is this land?
It lay to the east of Gondor and the great river Anduin, and to the south of Mirkwood.
Introduction
In J. R. R. Tolkien's fictional world of Middle-earth, Mordor (pronounced ; from Sindarin "Black Land" and Quenya "Land of Shadow") is the realm and base of the evil Sauron. It lay to the east of Gondor and the great river Anduin, and to the south of Mirkwood. Mount Doom, a volcano in Mordor, was the goal of the Fellowship of the Ring in the quest to destroy the One Ring. Mordor was surrounded by three mountain ranges, to the north, the west, and the south. These both protected the land from invasion and kept those living in Mordor from escaping. 
where is sauron during the lord of the rings He rules the land of Mordor
It lay to the east of Gondor and the great river Anduin, and to the south of Mirkwood, it was surrounded by three mountain ranges, to the north, the west, and the south. It lay to the east of Gondor and the great river Anduin, and to the south of Mirkwood. It lay to the east of Gondor and the great river Anduin, and to the south of Mirkwood.
Mordor Mordor Mordor
Introduction Introduction Introduction
 It lay to the east of Gondor and the great river Anduin, and to the south of Mirkwood. Mount Doom, a volcano in Mordor, was the goal of the Fellowship of the Ring in the quest to destroy the One Ring. Mordor was surrounded by three mountain ranges, to the north, the west, and the south. These both protected the land from invasion and kept those living in Mordor from escaping.  . It lay to the east of Gondor and the great river Anduin, and to the south of Mirkwood.  In J. R. R. Tolkien's fictional world of Middle-earth, Mordor (pronounced ; from Sindarin "Black Land" and Quenya "Land of Shadow") is the realm and base of the evil Sauron. It lay to the east of Gondor and the great river Anduin, and to the south of Mirkwood. 
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Mordor [SEP] Introduction
In J. R. R. Tolkien's fictional world of Middle-earth, Mordor (pronounced ; from Sindarin "Black Land" and Quenya "Land of Shadow") is the realm and base of the evil Sauron. It lay to the east of Gondor and the great river Anduin, and to the south of Mirkwood. Mount Doom, a volcano in Mordor, was the goal of the Fellowship of the Ring in the quest to destroy the One Ring. Mordor was surrounded by three mountain ranges, to the north, the west, and the south. These both protected the land from invasion and kept those living in Mordor from escaping.