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  1. 221
    Structural control of the gold deposits of the Cripple Creek district, Teller County, Colorado /
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    Government Document eBook
  2. 222
    Gold placers and their geologic environment in northwestern Park County, Colorado /
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  3. 223
    Gold placer deposits of the Pioneer district, Montana : a geologic study of the historic diggings along Gold Creek /
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    Government Document eBook
  4. 224
    Mineral resources of the Owens Peak and Little Lake Canyon Wilderness study areas, Inyo and Kern Counties, California /
    by Diggles, M. F.
    Published 1985
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    Government Document eBook
  5. 225
    Geologic setting of gold occurrences in the Big Canyon area, El Dorado County, California /
    by Earhart, Robert L.
    Published 1988
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  6. 226
    Newly located occurrences of lode gold near Table Mountain, Circle quadrangle, Alaska /
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  7. 227
    Petrographic and scanning electron microscope studies of samples from the Roberts Mountains and Popovich formations, Carlin Mine area, Eureka County, Nevada /
    by Armstrong, Augustus K.
    Published 1987
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  8. 228
    Distribution and abundance of gold and other selected elements in altered bedrock, Empire Mining District, Clear Creek County, Colorado : a study of the geological and geochemical relationships of gold anomalies to those of tellurium, tin, bismuth, silver, and manganese /
    by Chaffee, Maurice A.
    Published 1972
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    Government Document eBook
  9. 229
    Gold veins near Great Falls, Maryland : a discussion of the history of prospecting and mining the Great Falls area and a description of the gold-bearing quartz veins /
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    Government Document eBook
  10. 230
    Geology of lode gold districts in the Klamath Mountains, California and Oregon /
    by Hotz, Preston Enslow, 1913-
    Published 1971
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  11. 231
    A geochemical reconnaissance for gold in the sedimentary rocks of the Great Lakes region, Minnesota to New York /
    by Seeland, David A.
    Published 1973
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    Government Document eBook
  12. 232
    Geology and placer-gold deposits of the Jicarilla Mountains, Lincoln County, New Mexico : a description of the geologic framework, extent, and grade of placer deposits of the area /
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    Government Document eBook
  13. 233
    Gold placers of the Circle district, Alaska : past, present, and future /
    by Yeend, Warren E., 1936-
    Published 1991
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  14. 234
    Gold Deposits Related to Greenstone Belts in Brazil--Deposit Modeling Workshop : Part A--Excursions /
    Published 1991
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    Government Document Conference Proceeding eBook
  15. 235
    The laramide caborca orogenic gold belt of northwestern Sonora, Mexico : white mica ⁴⁰Ar/³⁹Ar geochronology from gold-rich quartz veins /
    by Izaguirre, Aldo
    Published 2016
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  16. 236
    Marine gold placers along the Gulf of Alaska margin /
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  17. 237
    A portable refraction seismograph survey of gold placer areas near Nome, Alaska : a seismic refraction investigation on the beach and tundra areas near Nome, Alaska, with emphasis on placer gold exploration /
    by Greene, H. G.
    Published 1970
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    Government Document eBook
  18. 238
    Orientation geochemical soil survey at the Nixon Fork mines, Medfra quadrangle, Alaska : a study to determine effective soil-sampling techniques for reconnaissance geochemical prospecting in the Nixon Fork district /
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    Government Document eBook
  19. 239
    Geochemistry and geology of deep drill holes at Iron Canyon, Lander County, Nevada /
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  20. 240
    Gold investigations in Precambrian clastic and pelitic rocks, southwestern Colorado and northern New Mexico /
    by Barker, Fred, 1928-
    Published 1969
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    Government Document eBook
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