Samuha Antik Kenti in Yıldızeli

You're standing at the settlement mound of Kayalıpınar, about forty kilometres west of Sivas. Beneath this ground most likely lies Šamuḫa, a Bronze Age city of the Hittites. Have a look at the river to the south. That's the Kızılırmak. The Hittites called it the Marassanta, and in classical times it was known as the Halys.