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1
reconnaissance of the Jarbidge, Contact, and Elk Mountain mining districts, Elko County, Nevada, by F.C. Schrader. [U.S. Geological Survey Bulletin 497.]
Published 1912“…Serial set 6228…”
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2
Headwater regions of Gulkana and Susitna Rivers, Alaska, with accounts of the Valdez Creek and Chistochina placer districts, by Fred H. Moffit. [U.S. Geological Survey Bulletin 498...
Published 1912“…Serial set 6228…”
Online Access
Government Document Electronic eBook -
3
Coal near the Black Hills, Wyoming-South Dakota, by R.W. Stone. [U.S. geological Survey Bulletin 499.]
Published 1912“…Serial set 6228…”
Online Access
Government Document Electronic eBook -
4
Geology and coal fields of the Lower Matanuska Valley, Alaska, by G.C. Martin and F.J. Katz. [U.S. Geological Survey Bulletin 500.]
Published 1912“…Serial set 6228…”
Online Access
Government Document Electronic eBook