柄山古墳

柄山古墳 is a keyhole-shaped burial mound in 岐阜県各務原市那加柄山町, Japan. It is a designated historic site of 岐阜県 and lies near 琴塚古墳. The mound is 82m long, with a rear circular section 54m across and 8.4m high. Its front section is 38m long and 4.9m high.

The mound is a 前方後円墳, a form with a square front and a rounded rear when viewed from above. Stone facing and burial-course pottery, known as 葑石 and 埴輪, also survive at the site. These features preserve evidence of its original construction and funerary use.

柄山古墳 dates to the early Kofun period, in the second half of the 4th century through the first half of the 5th century, within the broader period 250 CE to 650 CE. Its occupant is unknown. The area around 柄山 is thought to have been associated with powerful people from the Kofun period through the 奈良時代.

The surrounding district once contained another 前方後円墳 called 南塚古墳, two circular mounds near the summit of 柄山, and a group of kiln sites from the 奈良時代. Parts of these monuments were removed during land clearance in 1944 and 1957. More generally, monuments of this kind in Japan are known as kofun and were built mainly between the middle of the third century and the early seventh century CE.

柄山古墳 is a megalithic mound (tumulus with integral stones) in Kakamigahara, Japan. A typological estimate: 250 CE to 650 CE. No English Wikipedia article exists for it; the full text below is the Japanese article "柄山古墳", shown in the original language.