Toyohira River, River in Ishikari Subprefecture, Japan
The Toyohira is a river in Ishikari Subprefecture that spans 72.5 kilometers, flowing from mountain sources in northwestern Hokkaido down to its connection with the Ishikari River. Along its course it passes through Lake Jozan and is regulated by several dams while forming a natural boundary between Sapporo and Ebetsu.
The lower section of the waterway was redirected over time and no longer follows its original course, which is now known as the Fushiko River. This change occurred before the 19th century and permanently altered the local geography.
The Ainu people originally called this waterway Sapporo Pet, reflecting its deep place in regional history. The name Toyohira itself refers to an important crossing point that later shaped the identity of Sapporo city.
The waterway passes through several dam systems, so some sections are easily accessible to the public while others may be restricted by infrastructure. Visitors should research local paths and conditions before exploring the river to navigate safely.
In the upper reaches near Jozankei, natural hot springs emerge along the riverbanks, creating a striking contrast between the cool flowing water and warm thermal sources. This geological feature draws visitors seeking to experience both the river and thermal bathing in one location.
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