The Salem-Keizer Volcanoes are a baseball team located in Keizer, Oregon, who are charter members of the Mavericks Independent Baseball League, a four-team league entirely based in the Salem Metropolitan Statistical Area and playing all their home games at Volcanoes Stadium. From 1997 to 2020, they were members of Minor League Baseball's Northwest League as the Class A Short Season affiliate of the San Francisco Giants. With the reorganization of baseball after the 2020 season, the Volcanoes were not offered a player development license with any Major League Baseball club, though the Volcanoes promised to continue play in 2021, a promise they kept in forming the Mavericks League.