Sapu Sacred Mountain is located in Puzong Valley, Yangxiu Township, Ru County. It has been standing here for thousands of years, surrounded by mountains. The main peak is revered as the king of the local sacred mountains. Its highest peak is 6,556 meters, also known as "Sapgun Lagabu". It is one of the Bon sacred mountains in Tibetan Buddhism.

In midsummer, the top of Sap is covered with ice and snow, shrouded in rain and fog, while the bottom of the mountain is filled with red flowers, green grass and abundant water plants. Due to the deep valleys and inconvenient transportation, this breathtaking glacier has always been hidden in the secluded area and is little known. It is a virgin tourist land that has yet to be developed.