Location: Isparta, Egirdir District
The cave is located at the northern skirts of Inonu Hill which is 1.5 km south of Sariidris village. Reaching to the cave from the village is possible via tractor.
Properties: The cave is 227 meters long and is horizontal and dry. In precipitant seasons, some small lakes are formed inside some branches of the cave. The cave is generally dry. The temperature inside the cave is 16ºC. The atmosphere moisture is 82 percent. Inonu Cave has developed among the cracks in various directions inside the Jura – Creates aged limestone which are sitting on the Inonu Hill as a skullcap. Under this limestone layer, dolomite and locally Marian layers of Trias age.

The cave could not developed deeper because of these non – karstic layers. Inonu Cave had been developed in horizontal direction and as narrow galleries from the entrance. There is only a wide saloon at the entrance section. Here, there is a thick ground layer and inside this layer there are numerous skeleton parts. Therefore, it is understood that this section of the cave is either accommodated or used as a burial ground. Most of the galleries are empty, but there are numerous damlatas formations in some branches. The cave is known by the local folk for a long period and a lot of skeleton pieces were discovered at an area close to the cave entrance. No investigations on this fact had been executed.