Sorachi

The Sorachi River winds through the interior of Ezo, from mountain valleys through the Furano basin to the Ishikari. Its Ainu name is said to refer to the tumbling waters of the great falls on its middle course. Ainu from the Ishikari and Kamikawa districts hunted and traveled in the basin; routes following its upper waters also led across the mountains toward Tokachi. The river connected a landscape of wooded hills and settlements with the larger Ishikari system.