Skip to content
TolkienologyAn independent world of discovery
THE BOOKS. THE WORLD. THE IDEAS.
An encyclopedia & research journal
Explore Tolkienology
Explore Tolkienology

The Tolkien Encyclopedia

THE PUBLIC MIDDLE-EARTH ENCYCLOPEDIA

Explore Tolkien’s people, places, histories and ideas. Definitions remain free to read. Use a name or keyword, choose a topic, or browse by initial letter.

Latest encyclopedia additions

1 matching entries · 117 public entries in the encyclopedia. Reset filters

Places and kingdoms

Udûn

Udûn is a depressed valley in Mordor. During the War of the Alliance and the War of the Ring, the armies of Mordor commanded by Sauron passed through this valley on their…

Independent publication · Editorial standards · Membership · Reader login