Shiv mandir Kathgarh is one of the very famous temples in himachal Pradesh. This temple is devoted to lord shiva and parvati. This temple is situated 7 kilometers from indora on the meeting point of the Beas and the choch rivers.
The temple has a large shivalinga which is divided vertically in two parts. The bigger portion of the shivalinga is worshipped as lord shiva and the smaller portion is worshipped as goddess parvati. The distance between the two parts are increasing and decreasing as summer and winter. The linga inside the temples is made of wood and it automatically breaks into two pieces and that pieces are put in the right place and it again retains its original state.
According to the shiv purana, there was a war between lord Vishnu and lord brahma as to who is supreme of the two. They were about to use pashupat and have brought destruction all around. Lord shiva could not help seeing all this and he appeared as a fire pillar between the both. Lord Vishnu disguised as shukara went to the inquire the bottom and lord brahmas gander flew into the sky and look at the top of this fire pillar. Lord Vishnu came back without reaching the farthest point of the pillar in the ground.
Lord Brahma came back with a ketki flower saying that it was lying on the top of the pillar. Both the lord reconciled. Lord shiva then appeared and was very happy with the devotion and truthfulness of lord Vishnu so he awarded him similarity with self. This great fire pillar came to know as linga of lord shiva in Kathgarh temple.