The Two Towers, “The Riders of Rohan”. Sung by Aragorn when he saw the green plains of Rohan and the far off White Mountains, as he, Legolas, and Gimli pursued the Orcs that had captured the hobbits.

Gondor! Gondor, beween the Mountains and the Sea!
West Wind blew there; the light upon the Silver Tree
Fell like bright rain in gardens of the Kings of old.
O proud walls! White towers! O wingéd crown and throne of gold!
O Gondor, Gondor! Shall Men behold the Silver Tree,
Or West Wind blow again between the Mountains and the Sea?

Provided by: Malinornë