{{Short description|River in Turkey}} thumb|Bridge over Porsuk River in Eskişehir {{coord|39|42|N|31|59|E|display=title}} The '''Porsuk''' or '''Kocasu-Porsuk River''' ({{langx|tr|Porsuk Çayı, Kocasu-Porsuk Çayı}}), the ancient '''Tembris''',<ref>{{cite book |editor1-last=Nicholson |editor1-first=Oliver |title=The Oxford Dictionary of Late Antiquity |chapter=Tembris Valley |date=2018 |publisher=Oxford University Press |isbn=9780191744457 |url=https://www.oxfordreference.com/view/10.1093/acref/9780198662778.001.0001/acref-9780198662778-e-4626 |accessdate=Mar 19, 2020}}</ref> is a river in Turkey, that flows for {{convert|448|km|abbr=on}}. The city of Eskişehir is located on the banks of this river. The river is dammed by the Porsuk dam, forming large reservoirs. The Porsuk flows into the Sakarya River near the town of Polatlı, ancient Gordium.
==See also== {{commons category|Porsuk River}} * List of rivers of Turkey
==References== {{Reflist}} *{{GEOnet|-768171}}
{{Eskişehir Province}} {{Authority control}}
Category:Rivers of Turkey Category:Landforms of Eskişehir Province
{{Eskişehir-geo-stub}} {{Turkey-river-stub}}