Mt. Kinkei in Hiraizumi-cho, Iwate Pref. is an elegant, conical, 60-meter-high mountain. When the famous haiku master Matsuo Basho visited Hiraizumi, he expressed his impression of this historic site that, “only Mt. Kinkei retains its form.” It is said that Mt. Kinkei is an artificial mountain built by Hidehira in a single night. Legend has it that a pair of golden chicken statues has been buried at its peak. These legends seem to be based on the sutra mound near the apex. The evidence suggests that more than nine individual sutra mounds were created over the century from the reign of Kiyohira to that of his great-grandson Yasuhira. Due to these sutra mounds, Mt. Kinkei was a holy mountain dedicated to the protection and pacification of Hiraizumi. However, the site was badly disrupted by the random diggings in 1930, and its details have remained a mystery. A pot containing a sutra, which was made in Atsumi Peninsula, was excavated from the site. It is now displayed at Tokyo National Museum.