Tape Hissar is a prehistoric site located just south of Damghan. The site was firstly discovered in 1877 by A. Houtum Schindler and then investigated in 1931 and 1932 by Erich Schmidt, on behalf of the University of Pennsylvania Museum (Schmidt 1933, 1937). A surface survey was carried out in 1972, while in 1976 a re-study project was performed, utilizing modern methods of stratigraphic assessments, ceramic typological analysis and radiocarbon dating, by the University of Pennsylvania Museum, the University of Turin and the Iran Center for Archaeological Research (Dyson and Howard, 1989). Other researches, rescue excavations and salvage works were done in the 90s.
The site is notable for its uninterrupted occupational history from the 5th to the 2nd millennium BCE. The quantity and elaborateness of its excavated artifacts and funerary customs position the site prominently as a cultural bridge between Mesopotamia and Central Asia. Wikipedia