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The Black Diamond Coal Mining Railroad was long〔("Map of Antioch Area Coal Mines and Their Railroads Circa 1897-99" ), wx4.org/to/foam/shortlines/coal/mines.html. Retrieved 2011-02-06.〕 and ran from Black Diamond Landing, California (now part of the city of Pittsburg, California) to Nortonville, California. It was owned and operated by the Black Diamond Coal Mining Company〔("History; The Company" ), southport-land.com/history. Retrieved 2011-02-02.〕 and therefore did not have its own official name. Over the years, it has been known by at least four different names. (A report prepared by the State in the 1880s referred to it as both the "Black Diamond Coal Mining Railroad Company" and the "Black Diamond Railroad."〔Third Annual Report of the Board of Railroad Commissioners of the State of California for the Years ending December 31, 1880-81-82, pages 345-348.〕 It has also been referred to as the "Black Diamond Coal Company Railroad"〔Traci Parent and Karen Terhune, Images of America: Black Diamond Mines Regional Preserve, Arcadia Publishing, 2009, pages 115-126.〕 and the "Black Diamond Coal and Railroad Company."〔B. H. Ward, Mt. Diablo Coal Mine Railroads, The Western Railroader, Booklet 370-E.〕) The railroad was built by Gold Rush-era civil engineer and artist Sherman Day, and opened for service in 1868 primarily to serve the Black Diamond Coal Mine at Nortonville. At the town of Cornwall, California the railroad crossed the tracks of the Southern Pacific Railroad using an overhead trestle.〔The Pacific Tourist, J. R. Bowman, Publisher, 1882, p. 335.〕 It was mostly standard gauge, however there was a small segment that was narrow gauge from the mine portals to coal bunkers.〔 The railroad had four locomotives, two built in San Francisco by H. J. Booth at the Union Iron Works,〔〔Gilbert H. Kneiss, Locomotives of The Union Iron Works, Railway and Locomotive Historical Society Bulletin No. 68, November, 1946.〕 one built in San Francisco by Vulcan Iron Works〔 and one from the Baldwin Locomotive Works in Philadelphia, Pennsylvania.〔 Three locomotives had names: The ''D. O. Mills'' (named after Darius Ogden Mills), the ''Hayward'' (named after Alvinza Hayward), and the ''Black Diamond''. One locomotive was a narrow-gauge engine that was used to bring mine cars from the mine portals to the bunkers.〔 Trains ran by gravity from Nortonville to Black Diamond Landing because it was all downhill.〔 The railroad was abandoned in about 1885 when the Black Diamond Coal Mining Company closed its mine at Nortonville and moved all of its employees to another of the Company's mines at Black Diamond, Washington Territory.〔〔The move of coal miners from Nortonville, California to Black Diamond, Washington Territory, 1885 by Jacqueline Byer Dial, self published, 1980.〕 In 1888, two of its locomotives, the ''D. O. Mills'' and the ''Black Diamond'' were transferred to the Bellingham Bay and British Columbia Railroad ("BB&BC") in the state of Washington.〔Fred Jukes, Philip Van Wyck and Bruce B. Cheever, The Bellingham Bay & British Columbia Railroad Company, Railway and Locomotive Historical Society Bulletin No. 84, October, 1951.〕 The BB&BC was a company that had strong ties to the Black Diamond Coal Mining Company because the two companies had the same management.〔 The locomotive named ''Hayward'' was sold for scrap.〔 Today, part of the old roadbed can still be seen along Nortonville Road between Pittsburg, California and Nortonville. The terminus at Nortonville is now a historic preserve managed by the East Bay Regional Park District.〔〔 ==See also== * Black Diamond Mines Regional Preserve 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「Black Diamond Coal Mining Railroad」の詳細全文を読む スポンサード リンク
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