The name 'Dzu-kou' means cold waters. It is called so because the valley is so cold that those who visit are chilled to the soul. Old folklore also says that while their ancestors were looking for a suitable place to establish a village, a young scout was sent for this duty. He found the valley but it was too cold, uninhabited, nothing edible grew and there were no trees in the vicinity. It was initially called Phephu but the name changed to Dzukou.