History of archaeological scientific excavations in Iran date back to Qajar era. Of course, before that Iran and Europe used to be in cooperation with each other to do the excavations, but not in those scientific methods.
Allah Qoli Khan hill- West Azerbaijan province
After Islamic Republic Revolution, excavation in northwestern part of Iran around Urumia lake territory and research on Allah Qoli Khan hill in cooperation with Germany started from 1379 SH. Allah Qoli Khan is located on southeastern side of Urumia lake and southwestern of West Azerbaijan province of Iran. Inspections on the upper layer of the ground in this region caused researchers guess that there are remains of ancient ages in there. The ages like Neolithic which belongs to 10000 years ago, Chalcolithic and Stone.
Liyarsang Bon-Amlash-Gilan province
The newest season of Archaeological excavations took place in first of 2019 in north part of Iran, but they have been doing the excavations in Liyarsang Bon of Gilan province for 25 years. Archaeologists say this region is the only zone in which four sequence cultures from end of the Achaemenids until the first of Islamic age is existed there. Between both sides of Liyarsang Bon cliff there are remains and indications of a stair stepped village and on the other side some indications of ancient cemetery have been discovered. Researchers believe that when excavations end, they get a lot of information about civilization of Gilan province.
Qobaq Tappeh-Kermanshah province
Another archaeological excavation point in Iran is Qobaq tappeh. This place is a hill with a strategic location in Kermanshah province. There are extensive fields around Qobaq tappeh which used to be place for agriculture and animal husbandry. A south-to-north road also confirms the high importance of this territory. During excavations, archaeologists found a brick 1.6-meter-thick wall which used to be the foundation of high fortress. They also discovered an old furnace, a paving stone ground and more important than other things, a part of a tablet on which a passage with Assyrian language is written and dates back to Sargon the Great era.
Khaleseh Tappeh-Zanjan province
Khaleseh Tappeh or Khaleseh hill in English, is another Neolithic site in Iran, but the only one is Zanjan province for researchers. This region is located on southern side of Khorramdareh city in southern part of Zanjan province. Khaleseh is a small and low height hill which is 1600 meters high from the seas and only 300 meters far from residents’ town and in the middle of agricultural fields. It is also 2 meters high from the grounds around it and is 2116 m2 wide, but regarding some found evidence, here used to be more extensive than it. In 1388 SH archaeological group of Islamic Azad University of Abhar started to excavate and research on this territory. During this research a lot of potteries have been discovered which belong to 6200BC until 5600BC in the era of Neolithic. In terms of art and manufacturing technique, the discovered objects are similar to found objects of other towns in adjacency like Chaharboneh hill in Qazvin or Haji Firouz in Azerbaijan city. Some of these potteries nowadays are being exhibited in Saltymen museum of Zanjan.