Amon Gwareth was a smooth, hard, and black hill of stone sitting in the middle of the fair vale. It was on this hill of stone that the great and beautiful city of Gondolin was built, and the hill acted as its foundation. Amon Gwareth was located in the center of the fair vale of Tumladen, which was located inside the Echoriath.
- ↑ The Silmarillion, Quenta Silmarillion, Chapter XVI: "Of Maeglin"
- ↑ The Children of Húrin, Narn i Chîn Húrin, The Tale of the Children of Húrin, I: "The Childhood of Túrin"
- ↑ The Atlas of Middle-earth, The First Age, The Elder Days, "Gondolin"
- ↑ The Silmarillion, Appendix: Elements in Quenya and Sindarin names