Mineral resources of the Cougar Lakes-Mount Aix study area, Yakima and Lewis Counties, Washington /

by Simmons, George Clarke, 1923-
Published 1984

Geologic map of the Union City quadrangle, Madison and Clark Counties, Kentucky /

by Simmons, George Clarke, 1923-
Published 1967

Geologic map of the Palmer quadrangle, east-central Kentucky /

by Simmons, George Clarke, 1923-
Published 1967

Geologic map of the Clay City quadrangle, Powell and Estill Counties, Kentucky /

by Simmons, George Clarke, 1923-
Published 1967

Bedrock geologic map of the Ishpeming quadrangle, Marquette County, Michigan /

by Simmons, George Clarke, 1923-
Published 1974

Geology and mineral resources of the Barão de Cocais area, Minas Gerais, Brazil /

by Simmons, George Clarke, 1923-
Published 1968

Geology and iron deposits of the western Serra do Curral, Minas Gerais, Brazil /

by Simmons, George Clarke, 1923-
Published 1968

Geology and iron deposits of the western Serra do Curral, Minas Gerais, Brazil /

by Simmons, George Clarke, 1923-
Published 1968

Geology and mineral resources of the Barão de Cocais area, Minas Gerais, Brazil /

by Simmons, George Clarke, 1923-
Published 1968

Otter Creek coral bed and its fauna, east-central Kentucky /

by Simmons, George Clarke, 1923-, Oliver, William Albert, 1926-2005
Published 1967

Mineral resources of the Cougar Lakes-Mount Aix study area, Yakima and Lewis Counties, Washington /

by Simmons, George Clarke, 1923-, Van Noy, Ronald M., Zilka, Nicholas T.
Published 1983

Calloway Creek limestone and Ashlock and Drakes formations (Upper Ordovician) in south-central Kentucky /

by Weir, Gordon W. (Gordon Whitney), 1922-2011, Greene, Robert C., Simmons, George Clarke, 1923-
Published 1965

Mineral resource potential of the Hells Canyon Wilderness and contiguous roadless areas, Wallowa County, Oregon, and Idaho, Nez Perce and Adams Counties, Idaho /

Published 1983

Geologic map of the Richmond North quadrangle, Madison and Fayette Counties, Kentucky /

Published 1967