城堡峭壁

城堡峭壁（）是位于加利福尼亚州沙斯塔县一座巨型石山，最高处海拔。

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.

外部链接
*[http://www.fs.fed.us/r5/shastatrinity/recreation/smmu/wilderness/shasta-wilderness.shtml Forest Service Website]
*[http://www.parks.ca.gov/?page_id=454 California State Parks]
*[https://web.archive.org/web/20060515121234/http://www.siskiyous.edu/shasta/bib/B20.htm Writings of Joaquin Miller, including "The Battle of Castle Crags"]
*[https://web.archive.org/web/20120415171721/http://www.museumsiskiyoutrail.org/ Museum of the Siskiyou Trail]