Tonekabon is a city and capital of Tonekabon County, Mazandaran Province, northern Iran. At the 2006 census, its population was 43,128, in 13,087 families. The languages of Tonekabon are Mazandarani.
Wikipedia https://en.wikipedia.org/wiki/Tonekabon
Coordinates 36°48'55.557" N 50°52'43.321" E