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<br />. <br /> <br />. <br /> <br />. <br /> <br />4211 <br /> <br />of developing a valuable mine. Geologically speaking, though, <br />there could be concentrations of placer gold on the claim as <br />well as in other parts of the forebay reservoir (USDI, 1974). <br /> <br />Oil and gas are not present because of the absence of sedimentary <br />rocks that could be considered as a source. Coal likewise will <br />not be found because of the absence of sedimentary rocks. <br /> <br />Sand and gravel are present in the forebay area but they are <br />so intermixed with silts and clays that they are useless fot <br />counnercial or construction use without expensive and extensive <br />processing. <br /> <br />Some of the silts and clays within the forebay reservoir area will <br />be used for construction of the dam and as a sealing blanket for <br />the reservoir floor. <br /> <br />If minerals were found in the forebay area after filling the <br />reservoir, they could not be developed. The Bureau of Reclamation <br />does not permit any type of mineral development or gas and oil <br />production from lands underlying its reservoirs. <br /> <br />Turquoise Lake and Mt. Elbert Conduit - A few abandoned mines <br />and adits are located on the periphery of Turquoise Lake which <br />is adjacent to the Leadville Mining District. No commercial <br />mineral deposits were discovered. Design data is presently <br />being gathered for the proposed Mt. Elbert Conduit. <br /> <br />Geologically, the conduit will traverse a variety of geomorphic <br />conditions, including glacial moraine and outwash deposits and <br />alluvial sediments. <br /> <br />All mining claims, the majority of which are placer have been, or <br />will be, eliminated for the same reasons that one was declared <br />null and void at the forebay site; i.e., no valuable mineral <br />deposit was discovered within the limits of the claim(s). <br /> <br />The Bureau of Land Management mineral rights search, beginning in <br />1972, includes locating the owners of unpatented mining claims in <br />the area stretching from Turquoise Reservoir southward to Clear <br />Creek. <br /> <br />Lower Arkansas Valley Area - The alinements of the Fountain Valley <br />and Arkansas Valley Conduits are not presently known. Generally <br />speaking, it is known that e~tensive sand and gravel deposits do <br />occur in the Arkansas River alluvium. These, of course.. are used <br />in the construction and building industry. Fine eolian sand <br /> <br />UI-24 <br />