Inaridai No.1 Tumulus is a round burial mound whose diameter is about 28 meters and one of the Inaridai Kofun Cluster which consists of twelve burial mounds located on the height of the northern shore of the lower Yoro-gawa River in Ichihara City, Chiba Prefecture.
稲荷台1号古墳は千葉県市原市の養老川下流域の北岸台地上に営まれた12基からなる稲荷台古墳群中の1基であり、径約28メートルの円墳である。