Tsinghai. From the top of Ching So P'o or Hung P'u P'o Pass. Grassland.

Tsinghai. Shantszing in to an inn at Hsia Ko. The next morning we crossed this pass at 11,250 ft.

Tsinghai. A loess wall under construction. Earth is packed to height of 10' and if necessary loess sun dried bricks added for height. Good for many 10s of years.

Tsapa, Tsinghai. A custom station for the suppression of salt smuggling into Tibet. A southern view of mosque minaret. Typical houses with flat roofs in foreground.

Tsapa, Tsinghai. A custom station for the suppression of salt smuggling into Tibet. Approaching the mosque from the north.

Tsapa, Tsinghai. A custom station for the suppression of salt smuggling into Tibet. Door of mosque.