Map covers the more densely populated regions of the area, and show interurban railways and other electric railways.
1891-1893 - Lancaster & Millersville Railroad Co.
1893-1894 - Lancaster Traction Co.
1894-1899 - Pennsylvania Traction Co.
1899-1931 - Conestoga Traction Co.
1931-1976 - Conestoga Transportation Co.
Interurban lines:
Lancaster-Millersville (1891-1933)
Lancaster-Columbia (1894-1938)
Columbia-Marietta (1894-1932)
Lancaster-Lititz (1895-1938)
Lancaster-Ephrata (1900-1947)
Lancaster-Manheim (1901-1932)
Lancaster-Strasburg (1901-1932)
Lancaster-Adamstown (1903-1932)
Lancaster-Rocky Springs (1903-1947)
Lancaster-Terre Hill (1905-1932)
Lancaster-Quarry Hill (1905-1932)
Lancaster-Elizabethtown (1908-1932)
Lancaster-Coatesville (1909-1932)
Replacement bus companies:
Conestoga Transportation Co. (until 1976)
1904-1913 - Hummelstown & Campbellstown Street Railway Co.
1913-1946 - Hershey Transit Co.
Interurban lines:
Hershey-Hummelstown (1904-1946)
Hershey-Palmyra (1904-1946)
Hershey-Elizabethtown (1907-1940)
Hershey-Lebanon (1911-1941)
1895-1910 - United Traction Co. of Reading
1910-1913 - Reading Transit Co.
1913-1919 - Reading Transit & Light Co.
1919-1929 - Reading Transit Co.
1929-1950 - Reading Street Railway Co.
Interurban lines:
Reading-Womelsdorf (1895-1932)
Reading-Boyerstown (1902-1932)
Reading-Birdsboro (1904-1934)
Reading-Adamstown (1905-1933)
1891-1899 - Lebanon & Annville Street Railway Co.
1892-1899 - Lebanon & Myerstown Street Railway Co.
1899-1910 - Lebanon Valley Street Railway Co.
Interurban lines:
Myerstown-Lebanon-Palmyra (1892-1930)
Replacement bus companies:
Reading Bus Co. (until 1973)
1901-1907 - York County Traction Co.
1907-1939 - York Railways Co.
Interurban lines:
York-Bittersville (1901-1939)
York-Dover (1901-1932)
York-York Haven (1904-1932)
York-Wrightsville (1904-1933)
York-Hanover (1907-1939)
Replacement bus companies:
York Bus Co. (until 1977)
1896-1898 - Newtown Langhorne & Bristol Trolley Street Railway
1898-1901 - Newtown Electric Railway Co.
1901-1908 - Newtown Electric Street Railway Co.
1908-1913 - Bucks County Electric Railway Co.
1913-1917 - Bucks County Interurban Railway Co.
1917-1924 - Pennsylvania-New Jersey Railway Co.
Interurban lines:
Bristol-Langhorne (1896-1923)
Langhorne-Newtown (1897-1923)
Newtown-Wycombe (1899-1923)
Wycombe-Doylestown (1900-1923)
1901-1903 - Yardley Morrisville & Trenton Street Railway Co.
1903-1917 - New Jersey & Pennsylvania Traction Co.
1917-1924 - Pennsylvania-New Jersey Railway Co.
Interurban lines:
Trenton-Yardley (1901-1934)
Yardley-Newtown (1903-1924)
Yardley-Lambertville (1905-1924)