At a height of 2903 mts., situated in the interior of the district, the temple of Nag Raja at Sem Mukhem is held in high esteem by the people of the area. Transport facilities are available up to Khamba Khal, a distance of 64 kms. from Tehri. One has to walk for about 7 kms. from the Khamba Khal to reach Sem. The temple is situated at the top of a hill about 5 kms. from the village Mukhem which is 2 kms. from the motor head of Khamba Khal. Accommodation is provided by the ‘Pandas’ of the village Mukhem .