Kaplan Divlit cones were formed in the last phase of Kula volcanism. The volcanic activities that formed these cones took place in the last 25 thousand years. The lava that emerged in this last phase almost completely covered the lava that emerged in the previous phases. The lava released during both volcanic phases flowed towards the Gediz valley and even caused the Gediz River to be diverted. There are very typical craters at the peaks of the cones, which preserve their primitive structure very well. The lava from the Kaplan Divlit cone flowed approximately 15 km to the Gediz valley and covers an area of approximately 15 km2. Cones are located at an altitude of 650-750m above sea level and their base heights are 250m, 100m and 50m.

There are many lava caves within the crater of the Kaplan Divlit Volcano cone and the lava flows coming out of the Kaplan Divlit volcano cones. The caves in question are the spaces formed within the lava cover as a result of the rapid cooling and solidification of the outer part of the lava coming out of the volcano, and the flow of hot and fluid lava in the inner part. Caves formed in the lava flow came to light when the gaps in the lava cover collapsed over time.