County Type 10 Maps (Historic)
Adams County: 1916, 1941, 1953, 1966, 1980, 1991, 1995, 1999, 2002, 2004, 2005
Allegheny County: 1950 Sheet 1, 1950 Sheet 2, 1964 Sheet 1, 1964 Sheet 2, 1964 Sheet 3, 1976 Sheet 1, 1976 Sheet 2, 1976 Sheet 3, 1991 Sheet 1, 1991 Sheet 2, 1991 Sheet 3, 2000, 2003, 2004, 2005
Armstrong County: 1911, 1941, 1959, 1971, 1983, 1991, 1995, 2001, 2002
Beaver County: 1916, 1926, 1941, 1961, 1974, 1987, 1991, 2002, 2005
Bedford County: 1938, 1941, 1963, 1982, 1990, 1995, 2000, 2002, 2004, 2005
Berks County: 1915, 1926, 1953 Sheet 1, 1953 Sheet 2, 1953 Sheet 3, 1966 Sheet 1, 1966 Sheet 2, 1976 Sheet 1, 1976 Sheet 2, 1991 Sheet 1, 1991 Sheet 2, 1993, 1999, 2001, 2002, 2003, 2004, 2005
Blair County: 1915, 1941, 1962, 1975, 1991, 2002, 2003, 2004
Bradford County: 1911, 1930, 1941 Sheet 1, 1941 Sheet 2, 1964, 1978, 1990, 1993, 1995, 1999, 2000, 2002, 2004, 2005
Bucks County: 1912, 1945, 1946, 1950 Sheet 1, 1950 Sheet 2, 1971 Sheet 1, 1971 Sheet 2, 1971 Sheet 3, 1986 Sheet 2, 1986 Sheet 3, 1991 Sheet 1, 1991 Sheet 2, 2002, 2005
Butler County: 1941, 1959, 1968, 1982, 1990, 1995, 2001, 2004, 2005
Cambria County: 1915, 1941 Sheet 1, 1941 Sheet 2, 1962 Sheet 1, 1962 Sheet 2, 1975 Sheet 1, 1975 Sheet 2, 1990 Sheet 1, 1990 Sheet 2, 1996, 2003, 2004
Cameron County: 1914, 1941, 1958, 1974, 1986, 1990, 2002, 2004
Carbon County: 1916, 1941, 1961, 1974, 1983, 1990, 1993, 1998, 2003, 2004
Centre County: 1931, 1941 Sheet 1, 1941 Sheet 2, 1962 Sheet 1, 1962 Sheet 2, 1977 Sheet 1, 1977 Sheet 2, 1990 Sheet 1, 1990 Sheet 2, 1995 Sheet 1, 1995 Sheet 2, 1999 Sheet 1, 1999 Sheet 2, 2002 Sheet 1, 2002 Sheet 2, 2004 Sheet 1, 2004 Sheet 2, 2005 Sheet 1, 2005 Sheet 2
Chester County: 1923, 1931, 1941 Sheet 1, 1941 Sheet 2, 1959 Sheet 1, 1959 Sheet 2, 1978 Sheet 1, 1978 Sheet 2, 1991 Sheet 1, 1991 Sheet 2, 1993 Sheet 1, 1993 Sheet 2, 1995, 2000, 2003
Clarion County: 1912, 1941, 1962, 1974, 1990, 1995, 2001, 2003, 2004, 2005
Clearfield County: 1941 Sheet 1, 1941 Sheet 2, 1962 Sheet 1, 1962 Sheet 2, 1977 Sheet 1, 1977 Sheet 2, 1991 Sheet 1, 1991 Sheet 2, 1997 Sheet 1, 1997 Sheet 2, 2002 Sheet 1, 2002 Sheet 2
Clinton County: 1915, 1941 Sheet 1, 1941 Sheet 2, 1962, 1974, 1990, 1995, 1999, 2002
Columbia County: 1914,