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GEOLOGY. <br />d & Copper There is no geological survey of the district, <br />of Colorado, The character of the aountry rock is that of gneissic, or <br />' million banded granite, cut by a system of veins <br />having a general N, L', <br />and S,S7, course. <br />The veins shov/ little indication of having filled a fissure, <br />r, Colo,, as uf3ually understood, but follow the cleava~•e <br />r, joints and foliation <br />~, planes of the gneiss, rep lacing• the country rock on each side <br />> ~ of them, <br />The rvalle of the veins are not very yell defined, the <br />is bonded mineralization extending in some eases well into the country <br />rock, <br />ly days, <br />in width, <br />carrying <br />13, and <br />s, as <br />el, <br />Lls. <br />iad, <br /> <br />