2005年,对辽宁大连市土龙子4～7号积石冢进行清理。各冢均由数座长方形石砌墓室组成。墓室铺垫地石,再以石板、石块砌筑四壁,墓顶用多块石板封盖,墓室之上再积石堆垒。埋葬方式为多人二次或多人多次葬。出土遗物以陶片为主。冢群的年代应为庙山青铜时代遗址上层文化时期,距今约3000年。 In 2005, the Toulong mound of No.4 ~ 7 in Toulong, Dalian, Liaoning Province was cleaned up. Each mound by several blocks of rectangular stone tomb composition. Tomb paved ground stone, and then to stone, stone masonry walls, tomb with a multi-block flagstone cover, stone plot and then stacked stone heap. Buried way for more than two people or multiple burial. Unearthed relics mainly pottery. The mound of the era should be the Miaoshan era Bronze Age upper cultural era, about 3,000 years ago.