Bulletin . ata likely to be of value. Grateful ac-knowledgment is tendered the technical and analytical staff of theBureau of Mines at Pittsburgh, Pa., for its efficient aid in makingdesired analyses. MINING CONDITIONS IN THE BUTTE DISTRICT. GENERAL STATEMENT. Butte, situated on the Continental Divide, is probably the largestmining camp in the world, having a population of about 80,000 per-sons when mining operations reach capacity, as in 1916,1917, and 1918;practically the entire population is dependent directly or indirectlyon the mines, in which about 15,000 men are employed. Thus this onem
Bulletin . ata likely to be of value. Grateful ac-knowledgment is tendered the technical and analytical staff of theBureau of Mines at Pittsburgh, Pa., for its efficient aid in makingdesired analyses. MINING CONDITIONS IN THE BUTTE DISTRICT. GENERAL STATEMENT. Butte, situated on the Continental Divide, is probably the largestmining camp in the world, having a population of about 80,000 per-sons when mining operations reach capacity, as in 1916,1917, and 1918;practically the entire population is dependent directly or indirectlyon the mines, in which about 15,000 men are employed. Thus this onemining community, many mines of which lie within the city limits (seePI. I), 9r> per cent being included within a circle having a radius of !?£miles, employs as many metal miners as the States of Colorado, Utah,and New Mexico combined: half as manv as the States of California,Nevada, and Arizona combined; and almost as many as the combinedStates of Nebraska, Kansas, Oklahoma, Texas, Missouri, Arkansas,. QZ< co LLl I o O £ LU Q MINING CONDITIONS IN THE BUTTE DISTRICT. 3 Louisiana, Mississippi, Alabama, Tennessee, Georgia, Florida, andNorth and South Carolina. From the opening of the Butte mines tothe end of 1917 the metal production of the district has been aboutas follows:* Metal production of Butte mines. Quantity. Value. Copper 7,150, 000, 000 $1, 020, 000, 000 Zinc do 610,000,000 65,000,000 Silver ounces— 310, 000, 000 220, 000, 000 Gold do 1,600,000 32,000,000 Lead pounds— 40, 000, 000 2, 000, 000 1, 339, 000, 000 The total value of the output to the end of 1918 was well over$1,400,000,000. Ore reserves at present blocked out indicate thatfor many years an annual production of at least $50,000,000 can bemaintained, except when costs mount too high or selling prices droptoo low. ORES. In general, the region around Butte is a granitic uplift throughwhich run several series of veins that strike roughly east; the mainproducing veins, copper and zinc, strike
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
