Chōjayama Kanga ruins

The Chōjayama Kanga ruins (, Chōjayama kanga iseki) is an of archaeological site with the ruins of a Nara to Heian period government administrative complex, and a portion of an ancient road, located in what is now the Jūō neighborhood of the city of Hitachi in Ibaraki prefecture in the northern Kantō region of Japan. The site has been protected as a National Historic Site from 2018.

Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).