Gurdwara Pathar Sahib, is a beautiful Gurudwara sahib constructed in the memory of Guru Nanak, about 25 miles away from Leh, on the Leh-Kargil road, 12000 ft above sea level. The Gurdwara was built in 1517 to commemorate the visit to the Ladakh region of Guru Nanak Dev, the founder Guru of the Sikh faith.

During his lifetime Guru Nanak traveled to many distant places and one such place was Tibet. Guru Nanak is well respected by Tibetan Buddhists who consider him a saint; The Dalai Lama, spiritual leader of Buddhists in Tibet, has confirmed this in his discussions with some Sikh leaders saying that Tibetans revere Guru Nanak as a Buddhist saint under the name of Guru Gompka Maharaj.

In the late 1970s, during the construction of the Leh-Nimu road, a large boulder was found by Lamas in the middle of the road bed covered with Buddhists prayer flags. The boulder was covered with Buddhist prayer flags, the type of flags that are often found, strung by Buddhist Lamas, along mountain ridges and peaks high in the Himalayas to bless the surrounding countryside.

The bulldozer driver tried to push the huge stone to the side, but it refused to move. Gunning the engine he pushed the powerful machine to its limits, but the boulder refused to give way. Suddenly, with a large snap, the blade broke and the work stopped. That night the driver had a dream in which a voice told him not to move the stone.

In the morning he narrated his dream to one of the army officers who guard the mountain passes of Ladakh. The soldier told him, not to give any importance to the dream. When all efforts to remove the boulder had failed, it was decided to blow it apart with dynamite the next day. That night the army officer also had a dream not to remove the stone. He too decided the dream should be ignored, but early that morning, being Sunday, he and the workers were visited by several Lamas and other Ladhakhis who came to tell them the story of a Holy Saint they called Nanak Lama and the unyielding boulder.