“There remains that part of the Pontic province which lies outside the Halys River, I mean the country round Mt. Olgassys, contiguous to Sinope. Mt. Olgassys is extremely high and hard to travel. And temples that have been established everywhere on this mountain are held by the Paphlagonians. And round it lies fairly good territory, both Blaene and Domanitis, through which latter flows the Amnias River. Here Mithridates Eupator utterly wiped out the forces of Nicomedes the Bithynian — not in person, however, since it happened that he was not even present, but through his generals.”
From Strabo’s Geography12.3.40 (*Sinopis in the source was corrected to Sinope and *Faphlagonians [sic] to Paphlagonians)
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İlçe Belediyesi, Turkey Civil Administration Departments Inventory. Retrieved 1 March 2023.