Near Sardasht , About 8 Kms to the west, you find these waterfalls that called Shalmash waterfalls. These triple waterfalls join to Lesser Zaab river, exactly after Alout it arrives to border of Iran and Iraq.
This waterfall is considered as one of the branches of Zab-e-Koochak river. It is almost 10 ms in high and there is a notable quantity of water. Green and beautiful valleys and woods nearby the waterfall bring a specific beauty.