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15 cents 50 cents A. H. Brooks Adolph Knopf Alaska Baker bedrock beds bench Bull Bulletin 379 Bulletin 442 Bulletin 520 carried claims closely coal considerable Contained cover Cretaceous deposits developed distribution early extends F. H. Moffit Fairbanks feet fields flows G. C. Martin geologic gold Gold placers Grant gravels greater greenstones ground head Hill Hot Springs districts Hunter igneous L. M. Prindle later less lignite limestones locality lower materials miles mineral resources mining Mountain mouth Notes occur operations original P. S. Smith period placers Plate present probably Professional Paper prospecting published quadrangle quartzites Rampart and Hot range reconnaissance River rocks scale schists sediments separately Seward Peninsula showing silt slates southeastern Alaska streams Sullivan Creek summer supply surface Survey Tanana Topographic maps tributaries types U. S. Geol valley Water-Supply wide Yukon Yukon-Tanana region
Page vi - Occurrence of wolframite and cassiterite in the gold placers of Deadwood Creek, Birch Creek district, by BL Johnson. In Bulletin 442, 1910, pp. 246-250.
Page v - Bulletin 295, 1906, 27 pp. The Bonnifield and Kantishna regions, by LM Prindle. In Bulletin 314, 1907, pp. 205-226. The Circle precinct, Alaska, by AH Brooks.
Page i - Survey, from whom th«y can be obtained, free of charge (except classes 2, 7, and 8), on application. 2. A certain number are delivered to Senators and Representatives in Congress for distribution. 3. Other copies are deposited with the Superintendent of Documents Washington, 1).
Page iii - River region, by Adolph Knopf. In Bulletin 480, 1911, pp. 103-111. The Eagle River region, southeastern Alaska, by Adolph Knopf. Bulletin 502, 1912, 61 pp. The Sitka mining district Alaska, by Adolph Knopf. Bulletin 504, 1912, 32 pp. The earthquakes at Yakutat Bay, Alaska, in September, 1899, by RS Tarr and Lawrence Martin, with a preface by GK Gilbert.
Page iii - Bulletin 446, 1911, 58 pp. Mining in southeastern Alaska, by Adolph Knopf. In Bulletin 480, 1911, pp. 94-102. The Eagle River region, southeastern Alaska, by Adolph Knopf. Bulletin 502, 1912, 61 pp. "The Sitka mining district, Alaska, by Adolph Knopf.. Bulletin 504, 1912, 32 pp.