Basin League is a Independent or Senior Baseball League that played from 1953 to 1973.
1953 Chamberlain SD, Mitchell SD, Pierre SD Valentine Ne, Winner SD
1954 Huron SD, Watertown SD, and Yankton SD Enter the league.
1955 No Teams enter or left the league.
1956 No Teams enter or left the league
1957 Rapid City SD came into the league and Chamberline has left the league.
1958 Winner SD has left the league.
1959 No Teams enter or left the league.
1960 Yankton has left the league.
1961 Sturgis SD and Winner came into the league and Mitchell and Valentine has left the league.
1962 Huron has left the league.
1963 Valentine Ne, came into the League and Watertown has left the league.
1964 Sioux Falls SD, enter into the league.
1965 No Teams enter or left the league.
1966 Mobridge SD enter the league and Sioux Falls has left the league.
1967 No Teams enter or left the league.
1968 Camberlin SD enter the league and Valentine has left the league.
1969 No Teams enter or left the league.
1970 Winner has left the league.
1971 No Teams enter or left the league.
1972 No Teams enter or left the league.
1973 Mobridge has left the league .