| Cấm Sơn | |
|---|---|
| Commune and village | |
| Country |
|
| Province | Bắc Giang |
| District | Lục Ngạn |
| Time zone | UTC+7 (UTC+7) |
Cấm Sơn is a commune (xã) and village in Lục Ngạn District, Bắc Giang Province, in northeastern Vietnam.
Coordinates: 21°35′35″N 106°34′52″E / 21.59306°N 106.58111°E