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rock units slope generally towards the Southeast. The clip <br />• of the stratification ranges from 8 to 25 degrees, due t.o <br />minor folding. None of the natural or artificial slopes in <br />the mining property and in the vicinity of the property <br />shows any evidence of instability. None of the operations <br />proposed by Castle Concrete company appears likely to lead <br />to any instability. An outstanding example of the stability <br />in the Manitou Limestone Formation is the "Cave of the <br />winds" which is an extensive system of caves with nearly <br />perpendicular walls. This cave is located in Williams <br />Canyon adjacent to the Quarry on the west side. <br />The entire concept of revegetating the walls is <br />dependent upon the ability of plants to grow in holes. <br />. The history of attempts at such a procedure has, at best, <br />produced poor results. It is extremely risky to try a <br />such a process. Ecologically, the entire concept is shallow <br />for there are few habitats that are currently less understood <br />than the rock crevice environment. Few ecologists have giver <br />studied the habitat in detail and even fewer have even <br />ventured speculations as to how such a site would develo:~ <br />much less how to create one with any degree of surety. <br />It may well be that by the time the quarry is to be <br />revegetated such techniques will exist, but in light of :he proposed <br />reclamation plan as being a domestic use, Castle Concrete is not <br />in any position to undertake such pioneer and expensive investigations <br /> <br />5-E-12* <br /> <br />