The total population of the municipality in 2011 was 9,109, with 2,076 in Trilj itself and the rest in small villages. The list of settlements was as follows:[3]
In the area of Trilj there are many archaeological findings dating way back to Mesolithic. The first ethnic group that inhabited this area are the Illyrian tribe Delmati. Delmati people lived in a hill forts along the communication lines that connected their capital Delminium with the Adriatic coast. Hundred and fifty years of fierce fighting against the Romans (165 BC.- 9. AD) ended in defeat of Delmati people, after which Romans built the legionary fortress Tilurium on the hill above Trilj.[4]
Tilurium Roman legionary fortress
At the top of the hill of Gardun, just 1 km south of Trilj, remains of a legionaryfortress at Tilurium can be found. Tilurium guarded the entrance to the Cetina valley from the south and the approach to the provincial capital at Salona.[5]
Čačvina fortification
Čačvina Castle is a fortification that guarded approach from Bosnia during the wars with the Ottomans. It is situated 8 kilometres (5.0 mi) from the town at an altitude of 705 metres (2,313 ft) in a strategic location enabling its crew to oversee traffic of goods through the mountain passage that goes through the Dinaric Alps and leads to Bosnia. The first written record of this fortification dates to 1345.[6] First written record of fortification dates to 1345.[citation needed]
Nutjak fortification
Nutjak fortification is situated at the entrance of the Cetina river canyon, on a cliff. Fortress was built in the 15th century by nobleman Žarko Dražojević to protect land west of Cetina river from Ottoman invasion. [citation needed]
Museum was found in 1996 for the purpose of presentation of artifacts from nearby archaeological site (Roman legionary fortress Tilurium). Along with archaeological artifacts in a part of the museum ethnographic collection from Trilj and surrounding area is presented.
Tourism
Trilj and surrounding area are popular tourist area, becoming more popular on annual basis. The area has rich history and offers great opportunities for outdoor activities and adventure Holidays. Surrounding is dominated, on one side by Cetina river that is very diverse with white waters and calm parts, and by mountains of dinaric alps on the other side. Some of the activities include Cetina river fishing, canoeing, rafting, Canyoning, horseback riding, cycling and hiking.
^Smith, D., Gaffney, V., Grossman, D., Howard, A.J., Milosevic, A., Ostir, K., Podobnikar, T., Smith, W., Tetlow, E., Tingle, M., and Tinsley, H. 2006. Assessing the later prehistoric environmental archaeology and landscape development of the Cetina Valley, Croatia. Environmental Archaeology11 (2): 171-186
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