Recently, Yangzhuo Yongcuo (Yanghu Lake for short), Shannan City, Tibet Autonomous Region, showed more dark blue and peacock blue in winter because there was no cloud cover. From the perspective of aerial photography, the lake looks like a huge gem embedded in the plateau land, with magnificent scenery. Yangzhuo Yongcuo, which means "Biyu Lake" in Tibetan, is 4441 meters above sea level. It, together with Namco and Mapang Yongcuo, is called the three "holy lakes" in Tibet. The picture shows the scenery of Yang Zhuo Yongcuo after sunset. The picture shows Yang Zhuoyong's mistake in winter. The picture shows that the water of Yanghu Lake is "sapphire blue" in winter. The picture shows Rituo Temple, a famous scenic spot of Yanghu Lake. (Liu Xinshe)