The Mines of Colorado, Volume 20 |
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Page 146
... engine - house , with a 40 - horse engine , on the Bobtail mine . On Gregory 16 and 17 , there are shafts 60 and 90 feet deep respectively , both of them on good veins of ore . Nothing has been done on them for two or three years . On ...
... engine - house , with a 40 - horse engine , on the Bobtail mine . On Gregory 16 and 17 , there are shafts 60 and 90 feet deep respectively , both of them on good veins of ore . Nothing has been done on them for two or three years . On ...
Page 147
... engine - house and mill . A steam pump and suffi- cient hose provide reasonable guarantee against accidents by fire . This mill and that on the Gregory have produced during the Summer not far from $ 3,000 a week . The Company have ...
... engine - house and mill . A steam pump and suffi- cient hose provide reasonable guarantee against accidents by fire . This mill and that on the Gregory have produced during the Summer not far from $ 3,000 a week . The Company have ...
Page 148
... engine - house over No. 5 , 30 by 70 feet in dimensions , containing a 45 - horse engine , and machinery for pumping and hoisting . A line of shafting 183 feet long runs the shaft on 7 , which has a house over it 30 by 60. All the ...
... engine - house over No. 5 , 30 by 70 feet in dimensions , containing a 45 - horse engine , and machinery for pumping and hoisting . A line of shafting 183 feet long runs the shaft on 7 , which has a house over it 30 by 60. All the ...
Page 157
... house on the west end of the mine 30 by 50 , ex- clusive of a stone engine - room 18 by 30 , containing a 50 - horse engine and complete hoisting apparatus . A level has been run the whole length of the mine , 135 feet from the surface ...
... house on the west end of the mine 30 by 50 , ex- clusive of a stone engine - room 18 by 30 , containing a 50 - horse engine and complete hoisting apparatus . A level has been run the whole length of the mine , 135 feet from the surface ...
Page 159
... engine , on the territory next east of them . They have 100 feet each on the Fisk and Bates Lodes ; a shaft house and shaft 185 feet deep on the first , well timbered and supplied with ladders to the bottom ; a shaft thoroughly timbered ...
... engine , on the territory next east of them . They have 100 feet each on the Fisk and Bates Lodes ; a shaft house and shaft 185 feet deep on the first , well timbered and supplied with ladders to the bottom ; a shaft thoroughly timbered ...
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Common terms and phrases
50 feet adit agent arastras Arkansas Arkansas River assays average beds Black Hawk Bobtail California Central City claim Clear Creek County coal Colorado copper County crevice Crosby & Thompson Denver discovery dollars east eastern engine engine-house feet deep feet long fifty five fork four furnace Gold Mining Company Golden City gossan Gregory Gulch head hight hoisting hundred feet inches iron Kansas Kanyon Lake lodes machinery Middle Park miles miners Missouri River Moun Mount Lincoln mouth Nevada pans party Pass Pike's Peak placer mining Plains Platte pyrites Quartz Hill Range rich River rock Rocky Mountains Russell Gulch sandstone silver sluice smelting snow South Boulder South Clear Creek South Park specimens Spring stamp mill stone stream summit Summit County surface tains Territory thick thousand feet timber tion tons town tributaries tunnel twelve twenty Valley vein width Winter yield