Search Results

1

Geology and mineral resources of the Carlisle and Mechanicsburg quadrangles, Cumberland County, Pennsylvania /

by Root, Samuel I.
Harrisburg : Commonwealth of Pennsylvania, Department of Environmental Resources, Bureau of Topographic and Geologic Survey, 1978

Government Document Book

2

Geologic conditions affecting safe bituminous coal mining in Pennsylvania : selected papers /

Harrisburg, Pa. : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1979

Book

3

Geology and mineral resources of the Harrisburg west area, Cumberland and York counties, Pennsylvania /by Samuel I. Root.

by Root, Samuel I.
Harrisburg : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1977

Book

4

Geology and mineral resources of the Harrisburg west area, Cumberland and York Counties, Pennsylvania /

by Root, Samuel I.
Harrisburg, Pa. : Pennsylvania Bureau of Topographic and Geologic Survey, 1977

Government Document Book

5

Comparative tectonics and stratigraphy of the Cumberland and Lebanon valleys,

by MacLachlan, David B.
Harrisburg, Pa., Bureau of Topographic and Geologic Survey, Dept. of Internal Affairs, 1966

Conference Proceeding Book

6

Comparative tectonics and stratigraphy of the Cumberland and Lebanon valleys,

Harrisburg, PA : Bureau of Topographic and Geologic Survey, Dept. of Internal Affairs, 1966

Conference Proceeding Book

7

Geology and mineral resources of the Carlisle and Mechanicsburg quadrangles, Cumberland county, Pennsylvania /

Harrisburg : Commonwealth of Pennsylvania, Department of Environmental Resources, Bureau of Topographic and Geologic Survey, 1978

Government Document Book

8

Geology and mineral resources of the Carlisle and Mechanicsburg quadrangles, Cumberland county, Pennsylvania /

Harrisburg : Commonwealth of Pennsylvania, Department of Environmental Resources, Bureau of Topographic and Geologic Survey, 1978

Book

9

Geologic conditions affecting safe bituminous coal mining in Pennsylvania : selected papers /

Harrisburg [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1979

Government Document Book

10

Summary of isotopic age determinations in Pennsylvania /

by Lapham, Davis M., Root, Samuel I.
Harrisburg [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1971

Government Document Book

11

Geology and mineral resources of northeastern Franklin County, Pennsylvania /

by Root, Samuel I.
Harrisburg, Pa. : Pennsylvania Bureau of Topographic and Geologic Survey, 1971

Government Document Book

12

Geology and mineral resources of the Carlisle and Mechanicsburg quadrangles, Cumberland county, Pennsylvania /

by Root, Samuel I.
[Harrisburg, Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1978

Government Document Book

13

Geology and mineral resources of the Harrisburg west area, Cumberland and York Counties, Pennsylvania /

by Root, Samuel I.
Harrisburg, Pa. : Pennsylvania Bureau of Topographic and Geologic Survey, 1977

Government Document Book

14

Geologic conditions affecting safe bituminous coal mining in Pennsylvania : selected papers /

Harrisburg : Penna. Dept. of Environmental Resources, 1979

Book

15

Geology and mineral resources of southeastern Franklin County, Pennsylvania /

by Root, Samuel I.
Harrisburg, Pa. : Pennsylvania Bureau of Topographic and Geologic Survey, 1968

Government Document Book

16

Geology and mineral resources of the Harrisburg west area, Cumberland and York Counties, Pennsylvania /by Samuel I. Root.

by Root, Samuel I.
Harrisburg : Pennsylvania Geological Survey, 1977

Book

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