Simatai

A stretch of the Great Wall at Simatai
Another stretch of the Great Wall at Simatai

Simatai (Chinese: 司马台; pinyin: Sīmǎtái), a section of the Great Wall of China located in the north of Miyun District, 120 km northeast of the city center of Beijing, holds the access to Gubeikou, a strategic pass in the eastern part of the Great Wall. It was closed in June 2010 but has been reopened to tourists since 2014.