The largest cluster of northern Omi, ranged on a ridge above Shiotsu Bay — Lake Biwa's northern gateway. The chiefs who ruled the lake routes lie in a line, like ancient beacons above the water.
Finds & research
From Komatsu Kofun: TLV and linked-arc mirrors, bronze arrowheads, iron goods.
Two views on the occupant
Archaeological view
A great cluster of 132 mounds (8 keyhole, 8 square-fronted, 79 round, 37 square) strung 3km along the Nishinoyama ridge above Lake Biwa's northernmost bay, used chiefly in the early period. Nishinoyama Kofun, the 90m+ keyhole representative, is the largest; the early Komatsu mound yielded Chinese-style mirrors, bronze arrowheads, and iron goods.
Imperial Household Agency view
Not designated by the IHA. National Historic Site (2003).
Field notes
On a wooded ridge without a formal trail; an information board stands at the foot. The pin marks Nishinoyama Kofun.