per day. The factory mainly serves the domestic and local markets with limited exports to Iraq in recent years. Tourism Darreh Shahr County received more than 400,000 visitors in 2018, 120,000 of which visited the county in Spring alone. Darreh Shahr is the most visited county in Ilam Province. Darreh Shahr is home to 145 nationally registered monuments, buildings and historical sites. Darreh Shahr is built next to the ancient city of Madaktu, an important city in Elam civilization. The city has been destructed and reconstructed several times in history, each time changing name. Darreh Shahr county has been a popular settlement area throughout history because of the abundance of nearby natural resources, specifically the proximity of Kabir Kouh range as a source of water, fertile soil, woodlands and wildlife. Darreh Shahr Fire Temple is a four-arched building which is locally called Taaq. Originally the building was constructed by rubble stone and gypsum, and has recently been repaired. Gavmishan Bridge is located in the south of Darreh Shahr, in the beginning of a gorge with the same name on the outskirts of Kabir Kuh, is an ancient bridge with three arches that has been recently repaired (as of 2008). Each of its arches is placed at intervals from each other. This Sassanide bridge has been constructed in the confluence of the Seymareh and Kashkan rivers. Although it has been repaired several times during the past, it is almost in a ruined state now. Sheikh Makan Fort is located 6 kilometers southeast of Darreh Shahr, the ruins of this fort can be seen in the entrance of the village with the same name with 150 years of antiquity. Construction materials indicate that it belongs to the Qajar period. The walls of the fort are delicately made of stone and gypsum. There is also the remains of a watermill. There are many crevices and caves. One of them is known as the Kulkani Cave. The entrance of the cave is 30 meters long and there is a small pond built of stone and Sarouj (plaster of lime and ash or sand). In addition, there are 12 other caves similar to the dwellings of pre-historic men. Some vestiges like earthenware pieces and other objects belonging to the mid 1st millennium BC have been discovered in this cave. Jaber Mausoleum which resembles the Tomb of Daniel in Susa with a northern entrance is 15