Lines extending out past Portland city limits.

Cazadero (1903–1958)

Forest Grove (Never Built)

Gladstone Park Branch (1893–1901)

Gladstone Park Branch (1907–1926)

Oregon City (1891–1958)

Mount Hood (1911–1930)

Sandy (Never Built)

Mount Angel (1915–1938)

Troutdale (1907–1927)

Wilkesboro (1909–1923)