"THEN TUOR LOOKED DOWN UPON THE FAIR VALE OF TUMLADEN, SET AS A GREEN JEWEL AMID THE ENCIRCLING HILLS..."
PIC INFO: Spotlight on a Tolkien Legendarium piece titled "Tuor Reaches the Hidden City of Gondolin," gouache on illustration board, artwork by Ted Nasmith. First appeared in the 1996 Tolkien Calendar, published by HarperCollins (it was the painting for June).
"Then Tuor looked down upon the fair vale of Tumladen, set as a green jewel amid the encircling hills; and he saw far off upon the rocky height of Amon Gwareth Gondolin the great, city of seven names, whose fame and glory is mightiest in song of all the dwellings of the Elves in the Hither Lands. At the bidding of Ecthelion trumpets were blown on the towers of the great gate, and they echoed in the hills; and far off but clear there came a sound of answering trumpets blown upon the white walls of the city, flushed with the rose of dawn upon the plain."
-- "THE SILMARILLION," Chapter 23 "Of Tuor and the Fall of Gondolin," written by J.R.R. Tolkien, compiled & edited by Christopher Tolkien, published 1977
Sources: www.tednasmith.com/tolkien/tuor-reaches-the-hidden-city-of-gondolin & Henneth-Annun.