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,, .. <br />,~ ,, _ , , <br />linage, ceo~ocr,. <br />znder the lave There is no geological survey of the district. <br />:ock of100,006, The general character of the country rock is that oP a gneissie <br />or banded granite, intruded by dy]ces of quartz and andesite <br />olorado. <br />porphyry . <br />A system of veins fissure type, cut the above, <br />Denver, Cola, <br />having a etrike varying betvreen iv.lt', and e. fl'. on the one <br />.. „ <br />hand, and fi, E, and N. l"1. on the other, moet of which, <br />Idaho Spgs,~ <br />dipping to the north. <br />ptember, 1893, <br />y lst, 1904, <br />aratoga Group <br />if the <br />^o ad, also <br />.ah runs <br /> <br />