Karkar
Iraq
Karkar was an ancient Mesopotamian city in present-day Iraq. Its exact location is unknown (candidate Tell Ĝidr), though based on textual sources it is known that it is to be sought on the Tigris, between Adab and Zabalam. Identification with the archeological site Tell Ĝidr has been proposed, though it is not universally accepted.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).