Mentougou District/Precinct (simplified Chinese: 门头沟区; traditional Chinese: 門頭溝區; pinyin: Méntóugōu Qū) is in west Beijing. Spanning 1,321 square kilometres, with 266,591 inhabitants (2000 Census), it is subdivided in 17 townships. It lies in the Western Hills of Beijing and is mountainous

The mountainous Huairou county is situated in the north of Beijing. It is also home to some of the famous great wall sections like Mutianyu and Jiankou.

Popularly known as Beijing's playground, Miyun is where all of Beijing goes to on weekends to stretch their legs on the Great Wall and breathe in fresh air of the country side. Many of the famous great walls around Beijing are located in the Miyun county.