One important Proto-Elamite site besides Susa is…
3213 BCE to 3070 BCE
One important Proto-Elamite site besides Susa is Tepe Sialk, a large ancient archaeological site (a tepe or Persian tappeh, "hill" or "mound") in a suburb of the city of Kashan, Isfahan Province, in central Iran, where the only remaining Proto-Elamite ziggurat is still seen.
The Sialk mound was built around the eighth century BCE.
A joint study between Iran's Cultural Heritage Organization, the Louvre, and the Institut Francais de Recherche en Iran also verifies the oldest settlements in Sialk to date back to 5500–6000 BCE.
The culture that inhabited this area has been linked to the hypothetical Zayandeh River culture developing at the same time as other ancient civilizations appear alongside rivers in the region, such as the Sumerian civilization in Iraq and the Indus Valley civilization in India.
Iranian archaeologists during the 2006 excavations will uncover some artifacts that they link to those from Sialk.