The Colorado Rockies were founded in 1991, as part of Major League Baseball's two-team expansion along with the Florida (now Miami) Marlins. The original ownership group was led by John Antonucci and Michael I. Monus. Monus and Antonucci were forced to drop out in 1992 and Jerry McMorris stepped in with Charlie Monfort to assume ownership and ensure the Rockies would begin MLB play with the 1993 season. McMorris sold his stake to Charlie Monfort and his brother, Dick Monfort, in 2005.

Home ballpark history:
Coors Field (1995–present)
Mile High Stadium (1993–94)

Minor league affiliates:
AAA . . .

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