The site of in Kushiro, Hokkaidō, Japan, is that once occupied by the Ainu fortified chashi of Moshiriya. Occupying an elevated site, it is said to have been constructed during the Hōreki era (1751–1764) by the Ainu chieftain . It is one of a cluster of eleven chashi which have been jointly designated a national Historic Site:
They have a total designated area of .
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