Nishimotomezuka Kofun

Nishimotomezuka Kofun is an ancient burial mound in Nada consisting of two conjoined rectangular sections stretching 98 meters in length and rising 9 meters above ground. The site functions as a public park with accessible paths for visitors to walk around and examine the earthwork.

Archaeological excavations in 1985 revealed that the mound was built before 250 CE and contains eleven bronze mirrors documented in ancient Chinese records. The age and these artifacts provide evidence of early contact and exchange between Japan and the Asian mainland.

The tomb displays how people built burial chambers with split bamboo-shaped coffins and stones gathered from distant regions across the country. This construction reveals the networks and skills that ancient communities used to honor their dead.

The site is accessible as a public park and sits just two minutes on foot from Nishinada Station. Visitors can explore the grounds easily without difficulty or specialized equipment.

Seven mirrors with triangular rims and divine beast imagery were uncovered here, sent as gifts from Emperor Cao Rui to Queen Himiko of Wa in 239 CE. These objects provide rare evidence of diplomatic contact between Chinese rulers and early Japan.