Oshtoran Kouh is a massive sub range of Zagros located in Lorestan province about 500Km far from Tehran, about 18Km south-west to Azna city.Oshtoran Kooh is a long straight ridge line with the natural north-west to south-east orientation of Zagros range that expands to Chagha-Gorg area at south. Unlike the Alborz range that almost all of the ridges and sub ranges stick together at a high pass with a compact form seems like Zagros range ridge lines and sub ranges like Oshtoran kooh, Zard Kooh, Dena,… have a more discrete form, each being a massive block.Its natural glaciers are full of snow and ice throughout the year. This mountain rangehas numerous peaks, the tallest being San Boran with an altitude of 4,100 m.above sea level. This range from east to west runs in a zigzag fashion and at every bend forms into a semi-circle known as 'chal'. At the end of each of these 'chals' a permanent glacier is present. The 'chals' of the Oshtoran Kooh are named as, Meeshan, Kabood, Boran, Panjom, Fiyal Soon, Panjom, Peyar and Homayoon.
Another feature of the area that makes Oshtoran Kooh one of the favorites of Iranian mountain climbers is the beautiful south face with two lakes named Small Gahar ...see more and Big Gahar being great for camping.
The lakes, with a span of about 100 hectares, a length of 2500 meters, a width of 800 meters, and a depth of about 28 meters is situated 2400 meters above sea level.
There are more places for sightseeing around the Oshtoran Kooh, such as Negar valley(Dare-y-Negar), Bisheh Waterfall(Abshar Bisheh) and Talezang waterfall(Abshar Talezang) which their outstanding natural beauty are so impressive.