was a city
and its surrounding fortifications
in J.R.R. Tolkien
, located in a valley between Rohan
. At the center of the city is a tower known as Orthanc
which appears to consist of natural pillars of rock, but was in fact fashioned by cunning hands many centuries before. During the Third Age
, it was inhabited by Saruman
the White, from whom is derived the valley's name of Nan Curunír, Curunír
being the elvish equivalent of Saruman
Isengard is the city's name in the language of Rohan. It is a translation of the Sindarin name Angrenost meaning "Iron Fortress".
Isengard (or better, the tower of Orthanc) possibly is one of the places which gave name to the second volume of The Lord of the Rings, which is called The Two Towers. However, there are other candidates, and Tolkien states in one of his letters that he deliberately left the title ambigious.
Isengard is also the name of two Tolkien Metal bands, see Isengard (band).