カラクム砂漠
Tejen (older spellings: Tedzhen, Tejend, Tejent) is an oasis city with district status in the Karakum Desert, in Ahal Province of Turkmenistan. It lies along the M37 highway, between Dushak and Mary, by road southeast of Ashgabat. It has a population of approximately 52,000. To the east is the larger oasis of Mary.