Search Results

1

by Willard, Bradford, 1894-1973
Harrisburg [Pa.] : Pennsylvania, Bureau of Topographic and Geologic Survey, 1976

Government Document Book

2

by Ashley, Geo. H. (George Hall), 1866-1951
Harrisburg [Pa.] : Pennsylvania. Bureau of Topographic and Geologic Survey, 1922
2nd ed.

Government Document Book

3

Coal reserves in Jefferson County, Pennsylvania /

by Sisler, James D. (James Donaldson), 1894-
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Department of Internal Affairs, Bureau of Topographic and Geological Survey, 1924

Government Document Book

4

Raymond B. Winter State Park, Union County : scenery, rocks, and springs in eastern Brush Valley /

[Harrisburg] : The Bureau, 1984

Government Document Book

5

Geology and mineral resources of the Sinking Spring quadrangle, Berks and Lancaster counties, Pennsylvania /

by MacLachlan, David B.
Harrisburg [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1975

Government Document Book

6

Promised Land State Park, Pike County : ancient rivers and ages of ice /

[Harrisburg] : The Bureau, 1984

Government Document Book

7

Goodwill-Curley no. 1 well, Summit Township, Erie County /

by Wagner, Walter Richard, 1928-1974
[Harrisburg, Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1958

Government Document Book

8

Geology and mineral resources of York County, Pennsylvania /

by Stose, George Willis, 1869-1960
Harrisburg, Pa. : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1973

Government Document Book

9

Geology of Pennsylvania's oil and gas /

by Wagner, Walter Richard, 1928-1974
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey, 1980

Government Document Book

10

Summary ground-water resources of Butler County, Pennsylvania /

by Poth, Charles W.
Harrisburg, Pa. : Pennsylvania. Bureau of Topographic and Geologic Survey, 1973

Government Document Book

11

Fossil collecting in Pennsylvania /

by Hoskins, Donald M., Inners, Jon D., Harper, John A.
Harrisburg, [Pennsylvania] : Pennsylvania, Bureau of Topographic and Geologic Survey, 1988
Third edition, second printing.

Government Document Book

12

Hickory Run State Park : boulder field /

[Harrisburg, Pa.] : [Pennsylvania. Bureau of Topographic and Geologic Survey], 1969

Government Document Book

13

Guidebook for the 46th Annual Field Conference of Pennsylvania Geologists : geology of Tioga and Bedford Counties, Pennsylvania /

Harrisburg, PA : Distributed by Field Conference of Pennsylvania Geologists c/o Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1981