Shahr-e Sukhteh, c. 3550–2300 BC, also spelled as Shahr-e Sūkhté and Shahr-i Sōkhta, is an archaeological site of a sizable Bronze Age urban settlement, associated with the Helmand culture. It is located in Sistan and Baluchistan Province, the southeastern part of Iran, on the bank of the Helmand River, near the Zahedan-Zabol road. It was placed on the UNESCO World Heritage List in June 2014.

Mundigak is an archaeological site in Kandahar province in Afghanistan. During the Bronze Age, it was a center of the Helmand culture. It is situated approximately 55 km (34 mi) northwest of Kandahar near Shāh Maqsūd, on the upper drainage of the Kushk-i Nakhud River.