Dehloran Tar Spring

The Dehloran Tar Spring, one of the natural wonders of Ilam Province, lies 7 km northeast of the city of Dehloran, on the slopes of Siah Kuh mountain. Covering about 85 hectares, the site consists of one main spring with a 9-metre-wide mouth and three smaller secondary springs. The combination of natural bitumen and hot water at temperatures above 50 °C has created a natural pool 9 metres across and 50 centimetres deep. This geological phenomenon is listed on Iran's National Heritage list and is recognised as one of the tourist attractions of Ilam Province.

To reach the Tar Spring, drive from the city of Dehloran toward the Abgarm Forest Park. After passing the park, a sign on the right side of the road directs you toward the spring. From this point on, the route has no signposts, so it is best to use a local guide. The difficult part of the route involves crossing the bank of a seasonal river and then walking about 300 metres to the spring. The vegetation around the spring consists mostly of shrubs and bushland adapted to the dry climate and the subtropical conditions of the Siah Kuh foothills. Besides their visual beauty, these plants play an important role in preventing soil erosion and protecting the ecosystem . The wildlife is also notably diverse; small birds, reptiles such as lizards, and even larger animals such as hares and foxes live around the spring. A roofed fence has been installed around the spring to keep animals from entering it.

The best time to visit this natural phenomenon is spring, because the tar begins to seep out during this period and the weather is mild and pleasant. In summer, the intense heat may increase the spring's activity, but visiting conditions become somewhat harder. The access route involves driving to near the spring and then walking about 300 metres through the countryside. We therefore recommend visiting with a guide or local people so that your experience is safe and enjoyable. Practising responsible nature tourism, such as avoiding harm to the environment and not leaving litter behind, is essential for preserving this natural heritage.