This is located at the beginning of the Cetina river gorge of, downstream from trilj. It can be found on the rock above the right bank of the River, on the historical border between Cetina and Poljica. Nutjak was built at the end of the 15th century by Žarko Dražojević, the Duke of Poljica, in order to protect the village west of the Cetina river from the Ottoman irruption. The inhabitants of Trilj and Gardun call the fortress- Kuletina (the Big fortress). You can approach the fortress, by following the pathway which on its 4th km, separates from the Trilj- Bisko road with the climb lasting for about 15 minutes.