Katale Khor is a cave which is located in the province of Zanjan and the city of Khodabande. In some western parts of Iran, they call the low-lying mountains “Kataleh” and that’s maybe the origin of this cave’s name plus the “Khor” word which is the short form of “Khorshid” with the literal meaning of “Sun”. All together Katale khor means the low-lying mountain from where sun rises.
A group of the most prominent Iranian climbers discovered the the cave of Kataleh khor in 1952. The Cave is created in a rectangular area with dimensions of 2000 × 1500 meters. The cave entrance is located at an altitude of 1700 meters above sea level. The cave has been divided into three parts: cultural, recreational and sporting. The crystals and stalactites of Katale Khor in terms of quality, beauty and variety has made this cave the first limestone cave known in the world.