the Northern Ontario Junior Hockey Association folded when two of its teams (Sudbury Wolves and Sault Ste. Marie Greyhounds) jumped to Major Junior. The Charlottetown Islanders closed their doors after a marginal performance in the 1972 playdowns. Two new leagues came in 1972, the Ontario Provincial Junior A Hockey League was created as a rival league to the Southern Ontario Junior A Hockey League. The SOJHL was more in Southwestern Ontario, while the OPJHL focused more on the Greater Toronto Area. The other new league was the Quebec Junior A Hockey League. In 1973, the Island Junior Hockey League of Prince Edward Island made the jump from Junior B to Junior A. In 1975, the Eastern Junior A Hockey League ascended to Junior A from the Junior B ranks in Cape Breton Island. Then, in 1977, the Metro Valley Junior Hockey League jumped from Junior B to Junior A in mainland Nova Scotia. After one year of playing head-to-head for the provincial Junior A title, the EJHL folded and left the MVJHL as the only league in Nova Scotia. After various attempts to create a stable Junior A system in Newfoundland, the NAHA and its teams pulled out of National play in 1977. The Southern Ontario league folded in 1977, the Northern Ontario Junior Hockey League was promoted to Junior A in 1978 and the NorMan Junior Hockey League was promoted to Junior A in Manitoba in 1979. A second league was founded in British Columbia in 1974, the Pacific Coast Junior Hockey League was created to compete with the British Columbia Junior Hockey League - this league was absorbed by the BCJHL in 1979. A year later, the Peace-Cariboo Junior Hockey League was promoted from Junior B in East-Central British Columbia. That same year, the Thunder Bay Junior A Hockey League folded. They were replaced by a single team, the Thunder Bay Kings later to be the two-time Centennial Cup champion Thunder Bay Flyers. 1980s and 1990s The summer of 1982 saw the folding of the Quebec Junior A League. In 1983, the New Brunswick Junior Hockey League folded and merged with the Metro Valley Junior Hockey League. In 1985, the NorMan Junior Hockey League faltered and folded. In 1987, the OPJHL, then known as the Ontario Junior Hockey League, folded after dropping to only four teams. During the 1988 Centennial Cup playoff run, the Black Lake Miners of