Udozuka Tomb - Udozuka Tomb

Japanese: 烏土塚古墳 - うどづかこふん

<br /> This keyhole-shaped tumulus is located in Nishinomiya, Heguri-cho , Ikoma -gun, Nara Prefecture. It is located at the tip of a branching ridge at the eastern foot of the Ikoma Mountains, which run north and south along the border between Osaka Prefecture and Nara Prefecture. Excavations were carried out in 1969 (Showa 44), and it was designated a national historic site in 1971 (Showa 46). It is the largest ancient tumulus in the Heguri region, with a total length of about 60.5m, a diameter of about 35m at the rear circular mound, about 9m high, and a width of 31m at the front. The horizontal-hole-type stone chamber that opens to the south of the rear circular mound was built with huge stones, and the burial chamber is a double-sided type that is about 6m long, 2.1m wide, and 4.4m high. The entrance passage is about 8.2m long and 2.1m wide, and a culvert -type drainage ditch is installed in the center. In addition, a tuff-made house-shaped stone coffin was placed in the burial chamber, and the bottom of the stone coffin was also found in the entrance passage. Excavated artifacts include a four-animal mirror, a large sword, gilt bronze horse equipment, jewels, and sueki ware . It is believed to have been built in the late Kofun period, and is considered a rare example of clearly excavated artifacts among megalithic burial mounds. It is about a 5-minute walk from Tatsutagawa Station on the Kintetsu Ikoma Line.

Source: Kodansha National Historic Site Guide Information

Japanese:

奈良県生駒(いこま)郡平群(へぐり)町西宮にある前方後円墳。大阪府と奈良県との境を南北に走る生駒山地の東麓、枝状に延びる尾根の先端に立地する。1969年（昭和44）に発掘調査が行われ、1971年（昭和46）に国の史跡に指定された。平群地方では最大の古墳で、墳丘の全長は約60.5m、後円部径約35m、高さ約9m、前方部幅31m。後円部の南に開口する横穴式石室は巨石で築かれ、玄室は長さ約6m、幅約2.1m、高さ約4.4mの両袖式の形態をとる。羨道(せんどう)は長さ約8.2m、幅約2.1mあり、その中央には暗渠(あんきょ)式排水溝が布設されている。また玄室には、凝灰岩質の組み合わせ式家形石棺が置かれ、羨道部からも石棺の底が検出されているほか、出土遺物は四獣鏡・大刀・金銅装馬具・玉類・須恵器(すえき)など豊富で、古墳時代後期の築造と考えられ、巨石古墳のなかでは出土遺物の明らかな稀少例とされている。近畿日本鉄道生駒線竜田川駅から徒歩約5分。

出典　講談社国指定史跡ガイドについて　情報

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