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TITLE
 
DATE
Adams County  
1904
Armstrong County  
1932
Bedford County  
1911
Berks County  
1909
Blair County  
1915
Bradford County  
1911
Bucks County  
1936
Cambria County  
1915
Center County  
1908
Chester County  
1905
Clearfield County  
1916
Crawford County  
1939
Erie County  
1910
Franklin County  
1932
Greene County  
1921
Huntingdon County  
1934
Indiana County  
1931
Johnstown  
1907
Lancaster  
1900
Lancaster County  
1914
Lebanon  
1901
Lehigh County  
1912
Lockhaven  
1903
Lycoming  
1923
Mercer County  
1917
Montgomery County  
1905
Montour and Northumberland Counties   1942
Northeastern Pennsylvania  
1908
Northwestern Pennsylvania reconnoissance survey  
1911
South-Central Pennsylvania reconnoissance survey  
1910
Southeastern Pennsylvania reconnoissance survey  
1912
Southwestern Pennsylvania reconnoissance survey  
1909
Tioga County  
1929
Union County   1940
Washington County  
1910
Wayne County  
1932
Wyoming County  
1929
York County  
1912


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