Fourth of July Mine (Boulder County, Colo.)
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found: Work cat.: Fourth of July Mine and shaft house, 1910.
found: GNIS, Jan. 9, 2006:(Fourth of July Mine, mine, Boulder County, Colo., 40⁰00ʹ40ʺN, 105⁰39ʹ34ʺW; also one other Fourth of July Mine in Boulder County; unable to differentiate)
found: Kemp, Donald C. Silver, gold and black iron, 1960:p. 132 (... one of the silver hunters staked a location on July 4, 1872, which he called appropriately the Fourth of July lode, at the foot of Arapaho Peak, which in later years became a gold producer) p. 195 (The ore carries galena, black and gray sulpherets, green and blue carbonates of copper, with here and there traces of zinc, arsenic, and antimony)
found: Historical mine report files, c1900-1980 at the Colorado State Archives, Website, May 16, 2006 (lists three mines under Fourth of July Mine: Boulder, Clear Creek, and Jackson counties)
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