Mengwu Xiboge Sum, Administrative sum in Ergun City, China.

Mengwu Xiboge Sum is an administrative sum in Ergun comprising eleven villages set across a territory that combines agricultural fields and pastoral lands. The settlements are distributed across the area where farming and herding shape how the land is used.

The region developed through centuries of settlement as Mongolian communities established traditional farming and herding practices in this area. This long process of occupation continues to shape how the settlements are organized and how people live.

Shiwei's central square draws domestic package tourists with neon lights and techno music at night, alongside shops and eateries. Since CCTV listed it among China's "top ten most beautiful townships" in 2005, visitor numbers have grown, though tour operators often steer travellers to neighbouring Enhe for a "Russian" village experience.

Visitors need personal transportation or arranged tours to explore the villages, as public transport connections between settlements are limited. The best time to visit is during warmer months when road conditions make travel easier throughout the area.

The Friendship Bridge, agreed in 2001 under the 1991 Sino-Soviet Border Agreement, carries trucks hauling quarried stone into China but no passengers, which anthropologist Ed Pulford cites as an example of cross-border links that stay largely ineffective. The Russian village of Olochi faces Shiwei across the Ergune River.