The Hobbit

"They came to that high point at morning, and looking backward they saw a white sun shining over the outstretched lands. There behind lay Mirkwood, blue in the distance, and darkly green at nearer edge even in the spring. There far away was the Lonely Mountain on the edge of eyesight. On its highest peak snow yet unmelted was gleaming pale." 

J. R. R. TOLKIEN, The Hobbit, London, UNWIN PAPERBACKS, 1983, p. 276