大岚坑们於葵沙乡之东北,处惠阳之南,与汉诚相隔约八十公里,西北距惠深(惠州至深圳)公路之坪山站约十五公里,南距大鹏湾之沙鱼涌约七、八公里。处丛山狭谷之中,地僻人稀,除海道可供运输外,陆道多属羊肠小道,交通不便。二、地质 The Tai Lan Hangs are located in the northeast of Kwai Sha Township at the south of Huiyang and about 80 km away from Hancheng. To the northwest is about 15 km from Pingshan Station of Huishen (Huizhou-Shenzhen) Highway, Yong about seven or eight kilometers. Department of the craggy hills, rare and rare, except for the sea lanes for transport, the land is mostly a sheep trail, traffic inconvenience. Second, geology