Trilj (Italian: Treglia, Latin: Pons Tiluri) is a municipality and town in inland Dalmatia, Croatia. It is located southeast of Sinj and northeast of Split. The total population of the municipality is 9,417, with 2,110 in Trilj itself and the rest in small villages. The list of settlements is as follows:
- Bisko, population 397
- Budimir, population 116
- Čačvina, population 97
- Čaporice, population 410
- Gardun, population 84
- Grab, population 546
- Jabuka, population 330
- Kamensko, population 103
- Košute, population 1.757
- Krivodol, population 2
- Ljut, population 5
- Nova Sela, population 146
- Podi, population 17
- Rože, population 35
- Strizirep, population 32
- Strmendolac, population 199
- Tijarica, population 375
- Trilj, population 2.110
- Ugljane, population 404
- Vedrine, population 896
- Velić, population 304
- Vinine, population 28
- Vojnić Sinjski, population 572
- Voštane, population 137
- Vrabač, population 221
- Vrpolje, population 94
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 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 legionary fortress Tilurium on the hill above Trilj.
Tilurium Roman legionary fortress
At the top of the hill of Gardun, just 1 km south of Trilj, remains of legionary fortress 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.
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. First written record of fortification dates to 1345.
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. 
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.
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.
- "Census of Population, Households and Dwellings 2011, First Results by Settlements" (HTML). Statistical Reports (in Croatian and English) (Zagreb: Croatian Bureau of Statistics) (1441). June 2011. ISSN 1332-0297. Retrieved 2011-08-08.
- "Povijest". Retrieved 30 April 2012.
- 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 Archaeology 11 (2): 171-186
- "O Cacvini". Retrieved 2012-05-21.
- "Nutjak". Retrieved 30 April 2012.
- Spomenik u Košutama - silovanje pomirbe na groblju, Slobodna Dalmacija
- Trilj - Portal of Town Trilj (in Croatian)
- Town Trilj (in Croatian)
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