On Trotuş middle valley, at the foothills of Goșmanu Mountains from Eastern Carpathians at the western end of Dărmăneşti – Comăneşti Depression the conditions were in favour for the foundation of human communities with many millennia ago. Here, in this area, there is Comănești town, a former mining and forestry center.

The city is surrounded by Goșmanu Mountains at north, by Berzunţi Mountains at the east, by Nemira Mountains at the south and by Ciuc Mountains at southwest.