Godzareh Depression

The Gowd-i zerrah, i.e., Zerrah Depression (Persian for "lake depression") is the lowest part of an inland drainage basin covering large parts of southern Afghanistan and Iran known as the Sistan Basin.

The depression only receives runoff water when the main tributaries are overflowing every 10 years on the average.

The Godzareh depression is the lowest point in the Sistan Basin in Afghanistan and therefore is the terminus to which all the water flows.

The Helmand River water agreement was signed in 1972 between Mohammad Musa Shafiq and Amir-Abbas Hoveyda,[5] the then prime ministers of the country and Iran.

While the Zerah filled up with Helmand waters and uselessly, Iran's famous Hamun-e Helmand lake dried up as did other regional pastures, leading to the death of flora, fauna, cattle and birds in the Sistan and Baluchestan Province of Iran.