The Great Peach Valley Grottoes site is located in the Great Peach Valley in the western section of the Flaming Mountains of the Turfan Basin.Ten Tibetan Buddhist caves survive at the site.The two sidewalls of Cave 9 are covered with the images of eighty-four Mahasiddhas.A comparison with the paintings in the Phalkor Monastery in Gyantse,Tibet,and those in Cave 465 at the Mogao Grottoes suggests that the images found in Cave 9 are more similar to those in the Mogao Grottoes.For example,the image of the Mirror-Holding Master appeared in both the Great Peach Valley Grottoes and the Mogao Grottoes,but not in the Phalkor Monastery.This seems to indicate that the images under discussion were based on the same draft,and that the images in the Great Peach Valley Grottoes originated from those of Mogao Cave 465.This also clearly verifies the westward dissemination of Tibetan Buddhism in the Song and Yuan dynasties.
