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0 <br /> Heckendorf located claims on the glacial boulders of brecciated <br /> rock containing molybdenum at Birdseye, near the old town of <br /> Tabor, and on the south side of Chalk Mountain. Finding no great <br /> quantities there, he moved his operations to the north end of <br /> Chalk Mountain, near the town of Robinson. In every place, the <br /> tunnels would run through blocks into glacial wash. In 1914, <br /> Heckendorf returned to his old locations on Bartlett Mountain. <br /> Here he found that A. M. Gillaspey had staked the Denver claim <br /> about 1904. About 1914 , John Buffehr and C. J. Senter staked <br /> claims next to the Denver. Senter had also prospected on Chalk <br /> Mountain and staked claims on Bartlett Mountain as early as 1879 . <br /> Heckendorf obtained options on all the claims; except <br /> the Denver, and presented this data to the American Metal Company <br /> for evaluation and possible purchase. <br /> In November, 1916 , engineers from American Metal Com- <br /> pany visited the property and inspected the open cuts of Hecken- <br /> dorf and Buffehr. The Leal Tunnel was in 690 feet. In claim <br /> holdings, Leal had 5, Buffehr 2 , Senter 2 , and Heckendorf had <br /> many in the Tenmile Amphitheater. Eric Baer and Leal' s son had <br /> also located claims to the west of Leal, and O. A. King had <br /> located on Ceresco Ridge. <br /> 3. 2 ADVENT OF CLIMAX OPERATIONS <br /> 1917 to 1969 Disturbance Impact <br /> The Climax Molybdenum Company was formed in 1916 . In <br /> 1917, active exploration and development was undertaken by the <br /> 3-4 <br />