Yakgang Lhakhang or Yagang Lhakhang is located in a small village next to the town is another sacred monument of the Dzongkhag. It was built in the 16th century by Sangdag, the youngest son of Terton Pema Lingpa. Today, the lhakhang plays an important role in the religious life of the people. This is a privately owned monastery and is a 20-min walk from Mongar town. It is a repository of a wide range of spiritual treasures and other sacred objects.

This temple is renowned for its collection of religious treasures, masks, musical instruments, armour, ancient weapons, and xylograph blocks used for printing prayer flags and texts. The religious treasures include a statue of Gautama Buddha discovered by Pema Lingpa in Mebartso, Bumthang and a kila made by Pema Lingpa himself.

Yakgang Lhakhang

At this Lhakhang an annual three-day tshechu or ritual and Cham dance festival is held on the 8th, 9th and 10th of the fifth month of the Bhutanese lunar calendar. This festival is one of the oldest held in eastern Bhutan.

The style and the design concepts along with the principal architecture elements were all inspired from the Kupijitsam Lhakhang in the village of Yangneer in the district of Trashigang. The Lhakhang is revered by the local people for its power of warding away evil and making life easy for local inhabitants.