The Pacific Northwest League operated for six years. The first three years were 1890 through 1892. The league attained a Class F rating for the 1898 season. In 1901 they were a Class D organization. and in 1902 they were given a Class B rating.
Pacific Northwest' (1890–92)(F1898)(D 1901)(B 1902)
Butte, MT: 1902
Helena, MT: 1902
Portland, OR: 1890-92, 1898, 1901–02
Seattle, WA: 1890-92, 1898, 1901–02
Spokane, WA: 1890-92, 1898, 1901–02
Tacoma, WA: 1890-92, 1898, 1901–02