城堡峭壁
城堡峭壁(英语:Castle Crags)是位于加利福尼亚州沙斯塔县一座巨型石山,最高处海拔6,500英尺(2,000米)。
参考文献
- Aune, Quintin A., 1970, A Trip to Castle Crags: Mineral Information Service, Vol. 23, pp. 139–144.
- Miller, Joaquin 1837-1913. The Battle of Castle Crags. In: Rosenus, Alan. Selected Writings of Joaquin Miller. No place: Urion Press, 1977.