xmlns:atom="http://www.w3.org/2005/Atom"
17. The following operations where they are carried out in connection with any of the operations listed in paragraph 16:—
(a)modification of natural or man-made features;
(b)clearance of boulders, large stones, loose rock or scree;
(c)battering, buttressing or grading of rock faces; or
(d)cutting or infilling of pits or quarries.