Minaminakagawa
The middle Tokachi River country is a landscape of broad river valleys and wooded plains. Ainu settlements stood beside the Tokachi and its tributaries, near salmon fisheries and deer hunting grounds; their inhabitants also grew small quantities of millet. The winding Toshibetsu River joins the Tokachi in this district, its name recalling a rope-like course. In 1800 Minagawa Shūdayū traveled through the interior and recorded the Ainu communities along the river.