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The Golden Fleece Mine is a gold mining site in Hinsdale County, Colorado, south of Lake City. The mine is located half a mile west of the north end of Lake San Cristobal. By 1904 it had produced $1,400,000 in silver and gold ore. The mine operated intermittently until 1919. Later, in the mid-1960s, some renewed interest in the property came up, especially in the Hiwassee lode area of the mine, but other than a couple of small test shipments, there is no recorded production until today. The Golden Fleece Mine had much impact on the development of the whole area around Lake City. A description of the mine, with special emphasis on geological features, including photos and a profile map of the mine, was published by Thomas Arthur Rickard (Thomas Rickard was his cousin).〔Rickard, Thomas Arthur: Across the San Juan mountains. Engineering and Mining Journal, Vol. 76, 1903, online: ()〕〔Reprint publ. with different pagination, in: Rickard, T. A.: Journeys of Observation, San Francisco, 1907: Across the San Juan mountains, chapter 13: The Golden Fleece — a bonanza and its vicissitudes — geological features — theories of lode formation — the treatment of the ore. p. 80-86, online: ()〕 The Golden Fleece mine is also known for an unusual mineral, named hinsdalite (PbAl3(PO4)(SO4)(OH)6), which is a secondary phosphate mineral. == History == Gold was discovered at the mine site by Enos Throop Hotchkiss, the toll road builder, in 1874. The mine was staked as the "Hotchkiss Claim" with Enos T. Hotchkiss, Monette Hotchkiss, James Sparling, Ben Hall, and Byron Bartholf. Ben Hall, one of the original owners, traded this shares to Henry Finley. Being unable to perform the first work on the site within the time required by law, in October 1874, the claim was then relocated in the names of Henry Finley, W. C. Lewman, Byron Bartloff, Monette Hotchkiss and Enos T. Hotchkiss, each of the men holding a one-fifth interest. Later, Monette Hotchkiss traded his ownership to his father, Eno T. Hotchkiss, in return for stock in the Saguache & San Juan Toll Road. Finley also paid $8,000 for Bartholf’s share in the mine. Early in 1875 New York capitalist John J. Crooke paid $10,000 for a one-sixth interest in the Hotchkiss, with Finley selling another one-sixth share to Jonathan T. Livingston for $17,500. Results from preliminary work in the mine were promising and assay determination indicated the property to be very rich in telluride mineral and high gold ore content at a short distance below the surface.〔''Silver Thread 2008'': Publ. by Lake City Silver World Publishing. Online: ()〕 In November 1876, work on the Hotchkiss mine came to an abrupt halt when Enos T. Hotchkiss was severely injured while entering the mine and fell 30 feet down a shaft. After lying idle for many months, the mine was sold at sheriff’s sale to Chris Johnson, George E. Wilson (born 1839 in Pennsylvania, first mayor in Sterling, Colorado, died December 21, 1886) and Samuel Wendell. The new owners relocated the ground as the Golden Fleece mine. In 1890, Charles H. Davis took a lease on Golden Fleece mine. Then in 1892, he opened a large vein of rich telluride ore. In July 1892 one carload was valued at more than $19,000. In September 1892 he sold out for $50,000 to George W. Peirce of the Golden Fleece Mining and Milling Company (New York).〔''Portrait and Biographical Record of Denver and Vicinity Colorado, Containing Portraits and Biographies of many well known Citizens of the Past and Present together with Biographies and Portraits of all the Presidents of the United States'' (portraited person: Charles H. Davis), Chapman Publishing Company, Chicago, 1898, p. 791-792.〕〔Richard Walker Holmes, Marrianna B. Kennedy: Mines and minerals of the Great American Rift (Colorado-New Mexico), Van Nostrand Reinhold, 1983, p. 180-185; ISBN 0-442-28038-6, ISBN 978-0-442-28038-3.〕〔Engineering and Mining Journal, vol. 145, 1944, p. 102 (ISSN 0095-8948, CODEN ENMJAK).〕 Irving and Bancroft found the mine idle in 1911.〔Irving, John D., Bancroft, Howland: Geology and ore deposits near Lake City, Colorado. U.S. Geological Survey Bulletin, 1911, 478.〕 The mine was owned by Colorado-Utah Mines Operating Co., incorporated in Utah, in 1918/1920, but property was idle, too.〔The Mines Handbook: an enlargement of the Copper handbook,..., Vol. 13, 1918, p. 679.〕〔The Mines Handbook: an enlargement of the Copper handbook,..., Vol. 14, 1920, p. 518.〕 In 1922 the mine was owned by the revived Golden Fleece Mining and Milling Company (Iowa) again.〔The Mines Handbook: succeeding the Copper handbook,..., Vol. 15, 1922, p. 607.〕 The Golden Fleece mine was purchased by H. E. Moore in 1944.〔Engineering and mining journal, vol. 145, 1944, p. 102.〕 Near the north end of Lake San Cristobal, ruins of buildings at the Golden Fleece mine are still visible today. The old portal to the mine is thought to be located at latitude: 37.983077, longitude: -107.293130, while the portal for the main third level tunnel is given as latitude: 37.980600; longitude: -107.300000. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Golden Fleece Mine (Colorado)」の詳細全文を読む スポンサード リンク
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