丸子山古墳, Ancient burial mound in Osaka Prefecture, Japan.
The Marukoyama Kofun is a burial mound with a distinctive keyhole shape, consisting of a front chamber and a larger round mound behind it. The structure rises several meters above the surrounding land and covers substantial ground.
The mound was built during the Kofun period between the 3rd and 7th centuries, when Japan constructed such monumental graves for elite members. The exact dating and original contents help archaeologists understand the power structures and trade networks of that early era.
This mound reflects burial customs from early Japan, where earthen structures served as final resting places for important figures in their communities. The shape and scale show how people then expressed respect and status through monumental construction.
The site is accessible year-round and is best explored during daylight when you can see the details of the shape and structure clearly. Comfortable shoes are recommended, as the path around the mound winds through the area and the terrain can be uneven.
Some of these graves originally contained valuable objects like bronze mirrors and curved jewelry that displayed the wealth and connections of the deceased. Today, such finds can be studied in museums to learn more about the trade relationships and craftsmanship of that era.
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