出典:Wikipedia
出典:『Wikipedia』 (2011/01/17 19:55 UTC 版)
Its lower section is cut into a spectacular gorge beneath Craig-y-Ddinas or Dinas Rock, site of an Iron Age hillfort and of the once-famous Dinas Silica Mine. The gorge is well used by gorge-scramblers though there has been concern that their activities can cause damage to the rare bryophytes and mosses that colonise the rocks in this shaded valley and for which it has been designated as a special area of conservation.