San Tiao Zhong Gu Fen

The Sanjozuka Kofun (三条塚古墳) is a significant archaeological site located in the city of Futtsu, in Chiba Prefecture, Japan. It is a large burial mound (kofun) dating back to the 6th century, constructed in the distinctive keyhole shape (zenpō-kōen-fun). This specific architectural form is a hallmark of the tombs built for high-ranking individuals and regional leaders during Japan's ancient Kofun period. With its substantial length, the tumulus is a prominent feature of the local landscape, serving as a testament to the power structures and funerary practices of the regional elites of that era.

Historically, the Sanjozuka Kofun is part of a larger cluster of burial mounds in the region, providing valuable archaeological insights into the settlement patterns and political dynamics of the Bōsō Peninsula during antiquity. The mound's structure consists of a circular main section, which typically houses the burial chamber, and a rectangular anterior section that is believed to have been utilized for conducting ritual ceremonies. Like many kofun of this scale, the mound was originally encircled by a moat, designed both to demarcate the sacred precinct and to emphasize the monument's grandeur.

Today, the grounds of the Sanjozuka Kofun are preserved as a protected historical site. The mound is currently covered with trees and natural vegetation, blending harmoniously with its surroundings. While access to the interior burial chamber is generally restricted to ensure the preservation of the archaeological remains, visitors can walk around the perimeter to appreciate the tumulus's distinctive exterior shape and impressive dimensions. A visit offers a tranquil atmosphere and a chance to connect with the deep-rooted history of Japan's Kofun period.