Hotu and Kamarband Caves — Wikipedia

The Hotu and Kamarband Caves or Belt Caves are prehistoric archaeological sites in Iran. They are located 100 m (330 ft) apart, in a cliff on the slopes of the Alborz mountains in the village of Toroujen (currently called Shahid Abad), 5 km (3.1 mi) south-west of Behshahr in the Mazandaran province. Hotu Cave has an approximate size of 30 m × 20 m (98.4 ft × 65.6 ft).