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<br />On!53'1 <br /> <br />G. TIMBER RESOURCE <br /> <br />Of the total area, only 400 acres of spruce-fir type L, classified as <br />commercial forest. <br /> <br />This 400 acres is considered part of the marginal component because of <br />low volume, poor access and the steepness of the slopes it grows on. <br />It has a total standing volume of approximately 2.74 million board <br />feet. This volume is less than 1/2 of one percent of the total volume <br />in the East River Drainage (see marginal timber component in Figure <br />III-8) . <br /> <br />The East River Land Management Plan directed that this timber area <br />classified as marginal be placed in the unregulated portion of the <br />timber base. This will be done during the update of the timber <br />inventory which will be accomplished within the Forest Land Management <br />Plan. <br /> <br />There are no current plans to harvest this timber or any in the immediate <br />area because of low volumes, steep slopes and poor access. <br /> <br />H. MINERAL RESOURCE <br /> <br />1. Metals <br /> <br />The Oh-Be-Joyful Wilderness Study Area is within a geologic setting <br />favorable for the existence of mineral deposits. The study area is <br />located on the west edge of the Colorado Mineral Belt, within a <br />historically productive metal mining district, and within one mile of <br />a major molybdenum ore deposit. <br /> <br />The Colorado Mineral Belt is a narrow area, extencing southwest some <br />250 miles from Boulder to Durango, that contains E.lmost all of Colorado's <br />metallic mineral deposits (Fig. 1II-9). As of 19(,3 mines in this belt <br />had produced over $3 billion dollars worth o~/minEral commodities <br />since the first mines opened in the 1860's. - Sjnce that time, <br />several additional billion dollars worth of rnetal]ic minerals have <br />been produced at the Henderson and Climax molybdenum mines. The <br />Colorado Mineral Belt and the Oh-Be-Joyful Wilderness Study Area are <br />both characterized by an abundance of igneous masses which were <br />forcibly intruded in a molten state into preexisting rocks. Metallic <br />mineral ore bodies are often genetically related to these igneous <br />intrusive masses. <br /> <br />'V <br /> <br />Tweto, Ogden, and Sims <br />Colorado Mineral Belt. <br />p. 991-1014, <br /> <br />P.K., 1963, <br />Geol. Soc. <br /> <br />Precambrian Ancestry of the <br />America Bull, Vol. 74, No.8, <br /> <br />32 <br />