The
Ainu know this river as
Sapporo Pet (Sapporo River).
Toyopira was originally the name of a crossing point of the Sapporo River. Until the 19th century, the lower course of the Sapporo River had been the same as the
Fushiko River of today, emptying into the Ishikari River directly to the north. After a flood, the river made a new course to the east. The Ainu call the remains of this old lower course of the Sapporo River
Fushiko Sapporo or
Old Sapporo. When the Japanese colonized the area, they used Ainu place names. They named the new capital city after the river
Sapporo and named the Sapporo River (
Sapporo Pet) after the crossing point
Toyohira. The old lower course of the
Fushiko Sapporo was named . The
Toyohira Bridge was built at the crossing point named
Toyopira by the Ainu. ==Tributaries==