Show ALASKA MINES YIELD IN 1918 the mines of alaska yielded in 1918 products worth according to preliminary estimates prepared by G C mar tin of the U S geological survey department of the interior although alaska mining was so adversely affected by shortage of labor and shipping and by high cost of supplies that the value of the output fell nearly from 1917 the production was still far greater than in any year before 1915 alanskas chief mineral product is copper of which pounds valued at was mined in 1918 the gold output worth of which placers yielded was less than in 1917 and was the smallest since 1904 the mining of tons of coal worth is significant as the only marked advance over the production of 1917 as by far the largest coal output in alaska mining and as the probable beginning of a substantial coal industry alaska also produced in 1918 silver worth tin worth lead worth chrome ore tungsten palladium platinum and antimony aggregating and petroleum marble 2 gypsum lime and bricks aggregating the total yield of alaska mines since 1880 has been more than of this gold was worth and copper |