Gomukh is place in Gangotri glacier where the Bhagirathi river originates. Bhagirathi River is also famous as River Ganges. The official river Ganges starts at Devprayag when Bhagirathi river merged with river Alaknanda. The Gaumukh is located at at the height of 13,200 fts. Gomukh means "Mouth of a Cow". Gomukh is 18 kms far from Gangotri town by walk. The trek is very hard and only a few people dare to reach here, thats why the whole area is still best for nature lovers without pollution. Trekking permit is required to reach Gaumukh which is issued at Uttarkashi. Gomukh, the terminus or snout of the Gangotri Glacier, from where Bhagirathi River originates, is one of the primary sources of the Ganges River. The place is situated at a height of 13,200 ft (4,023 m) in Uttarkashi district in the state of Uttarakhand, India. It is one of the largest in the Himalayas with an estimated volume of over 27 cubic kilometers. It is a popular Hindu pilgrimage site, along with Gangotri, as well as trekking destination. On July 26, 2016, following heavy rains in Uttarakhand, it was reported, the front end of Gomukh was no more, as a large chunk of the glacier had collapsed and was washed away. In 2013, due to cloud burst in Uttarakhand, huge cracks had emerged on the glacier.Gomukh is also referred to as "Gaumukh" or "Gomukhi" The word "Gomukh" (go + much) literally means "Mouth of a Cow". According to some sayings, earlier the snout exactly looked like "Mouth of a Cow". Gaumukh Tapovan Trek best time is during 25 April, May, Jun, July, Sep, Oct.