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' 10. cont. 10. .. f. The total area involved in the operation is indicated on the map as Parcel-1 and Parcel-2, the combinaticn of the two represents the affected areas. Parcel-1 is used for processing, stockpiles, office, scale and shop facilities; but there will be no open mining in this area. Parcel-2 indicates that area within which there will be cpen mining. g. "Exhibit B" map provides the topography of the area. h. No attempt was made to indicate the general type, thickness and distribution of soil over the area on the map but the following statement is made in reference to this question. With reference to "Exhibit B", a topographical map of the area, the soils generally found above the approximate ele- vation of 6,450 feet have characteristics different from the soils below this elevation. In the area above this elevation the subsurface material is predominantly Pre- cambrian Crystalline Rock, which is exposed to the sur- face throughout most of the area. The exposed rock is in various stages and sizes of disintegration. This disinte- grated rock forms the bulk of the overburden. Where sur- face soils do exist they are mixed with the disintegrated rock, and the fine materials are iorganic clayey fine sands or silts with slight plasticity. The depth of the over- burden varies form virtually nothing on the ridges to a depth of up to six (6) feet in a few pockets along the drainage channels. In the areas below the 6,450 foot elevation the subsurface materials are, from the West to East, materials from the Fountain Formation, Lyons Sandstone Formation and the Lykins Formation, and each formation is intermixed with thin bands of either inorganic or organic clays. These formations are exposed to the surface at randum throughout the area. The surface materials are generally inorganic micaceous silty soils or inorganic clays with medium to high plasticity. These soils cover the area in a generally uniform thickness of two to eight inches, and in some places are mixed with disintegrated crystalline rock. i. No attempt was made to indicate the type, character, and density of present vegetation covering the area on the map, but the attached evaluation prepared by the U.S. Soil Conservation Service provides the required information. j. No effort was made to indicate the depth of the crystalline rock in the affected area, because available geological in- formation indicates that the depth is unlimited. k. A map marked "Exhibit G" indicates the expected physical appearance of the affected area. This illustrates the over- all objective of the operation, that is, to provide by the open mining, a future land use of areas suitable for build- ing sites. Parcel-1 will be used continuously for stock- piles, processing, office, scale, and shop facilities until the adjacent areas are mined and then will be shaped as in- dicated for development of building sites. It is antici- pated that the extraction of rock from the Parcel-2 area will be completed by December 1, 1979.