Beavertown

1965

1:24k

Beavertown

1965

1:24k

Beavertown

1965

1:24k

Mifflinburg

1943

1:63k

Mifflinburg

1953

1:63k

Mifflinburg

1938

1:48k

Mifflinburg

1953

1:63k

State College

1988

1:100k

State College

1984

1:100k

Folded Structure. Harrisburg, PA. Geologic Map of Harrisburg, PA.

1966

O'Brien, Emmett J

1:250k