What is "sefid-ab"

Sefid-Ab is an archeological site in central Iran and is the first known evidence for Upper Paleolithic occupation of that region.

The site is associated with an old spring which was an important water source for Upper Paleolithic people in the dry region of Kashan during the late Pleistocene. Collected stone tools are characteristic of Baradostian and has similarities to Upper Paleolithic industries of the Zagros region.