The final incarnation of the league was managed by Hockey Hall of Fame member Al Leader, and grew out of combining teams from the Southern California Hockey League and the Northwest International Hockey League. The PCHL was founded as an amateur loop, partly because the National Hockey League recognized Pacific Coast Hockey Association (PCHA) founder Lester Patrick as the territorial rights holder for professional hockey in Vancouver, Portland, and Seattle. In 1948, however, the ten team league voted to turn pro, and was recognized as such by the NHL.
Before the start of the 1951–1952 season, the PCHL had dwindled to a six team league. The neighbouring Western Canada Senior Hockey League (WCSHL), which played minor senior hockey on the Canadian prairies, had also dwindled, to just three franchises. The three WCSHL franchises turned professional and joined the PCHL for 1951–1952. One year later, the PCHL renamed itself the Western Hockey League before the start of the 1952–1953 season.
The PCHL championship trophy was the President's Cup.