. Factory and industrial management. OLU TUNNEL INTO ALASKAN CUAL MINEI his tunnel was opened ten years ago and about i,ooo tons of coal mined with the expecta-tion of supplying San Francisco, but it proved at that time more profitable to usethe equipment in a neighboring gold mine. THE COAL RESOURCES OF THE PACIFIC. 173. A.\ OF LUAL The upper pick tip points to the top. The seam is 47 inches thick at outcrop and 53 inches thick at the end of a drift 97 feet long. bors of tlie coal tields of Puget Sound and \ancouver Island areadmirably protected from storms, but the Kyak coal has
. Factory and industrial management. OLU TUNNEL INTO ALASKAN CUAL MINEI his tunnel was opened ten years ago and about i,ooo tons of coal mined with the expecta-tion of supplying San Francisco, but it proved at that time more profitable to usethe equipment in a neighboring gold mine. THE COAL RESOURCES OF THE PACIFIC. 173. A.\ OF LUAL The upper pick tip points to the top. The seam is 47 inches thick at outcrop and 53 inches thick at the end of a drift 97 feet long. bors of tlie coal tields of Puget Sound and \ancouver Island areadmirably protected from storms, but the Kyak coal has no naturalharbor, and this is true of many of the Alaskan coal fields. Westward from Kenai, the greatest and most extensive coal fieldin Alaska is reached, cropping out in many different seams, in two har-bors on the Pacific and one on Bering Sea. These Chignik-Unga-Herendeen Bay coal measures, lat. 55° 30 to 56° 30, long. 158° to161°, are not onlv the most extensive and most accessible fields inAlaska with coal in quality next to that of Kyak. but fully equal toany coal mined further south. The specific gravity runs from ; the coal is hard, brilliant, clean and very strong, not crumblingunder severe exposures to water, frost, or sun, nor with very roughusage. This field is of unique value because
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Keywords: ., bookcentury1800, bookdecade1890, booksubj, booksubjectengineering
