大崎山

• e there
• + u each other
• + ka on top
• + o put, be placed
• + pi pebble, stone

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

The local history of Toyooka-chō reads the name as 'there is a stone there'; the author restates it as stones laid one on another and takes the referent to be the built stone structure on Ōsaki-yama, eleven metres long, reported in 『余市町大崎山遺跡第一調査概要』.