小平こびら Kobira

Biratori, Hidaka region, Hokkaidō

Ainu spellings: Ku-o-pira

Kuopira and Hayopira are the pair of cliffs that face each other at the Biratori bridge and give Biratori its name; the settlement of Kobira takes its name from the eastern one.

Location

42.6051, 142.1830 · Coordinates: OpenStreetMap Nominatim, 2026-09-10, on 小平. Open in OpenStreetMap

Readings in the place-name tables: クオピラ Ku-o-pira

Referents

mountain Kuopira, the eastern of the two cliffs facing each other at the Biratori bridge, opposite Hayopira

Analyses

ku-o-pira

クオピラ ‘cliff where set bows are’ proposed

ku ‘set bow, spring trap’
o ‘have’
pira ‘cliff’

Proponent: zenibako_trek（小樽銭函地名歴史研究会） (zenibako_trek (Otaru Zenibako Place-Name and History Society))

Kuopira is one of the two cliffs that give Biratori its name, pira-utur 'between the cliffs'; the settlement name comes from the cliff.

Confidence: low

pira is a dictionary word in the sense used; the article gives no dictionary for the element ku.

zenibako_trek… 「小平（こびら）」

Sources

zenibako_trek…