The Southern Ontario Junior A Hockey League was a Tier II Junior "A" ice hockey that lasted from the late 1960s until 1977 in Southern Ontario, Canada. The league was swallowed by what is now called the Ontario Provincial Junior A Hockey League in 1977. The Big '10' Western Division Prior to 1956 Western Ontario Junior "B" Hockey League 1956 - 1968 Western Ontario Junior "A" Hockey League 1968 - 1970 Southern Ontario Junior "A" Hockey League 1970 - 1977