"we caught sight of a vast slope dotted with Tibetan and Chinese tombs"

Chinese tombs are quite different from Western ones. Typically Western graves are submerged in the ground, with a plain tombstone marking the location. Chinese graves, by contrast, are on the surface, with an elaborate stone structure surrounding the tomb. The stone structure is usually round, and can sometimes feature a small garden or pond. Additionally, Chinese tombs usually feature a portrait of the deceased, as well as a memorial plaque with messages from well-wishers. The placement and design of Chinese graves varies based on the deceased's religious beliefs.