Sze-ch’wan, China (Google Maps ⧉, OpenStreetMap ⧉)

"Mountaineers on the Borders of Sze-ch’wan and Tibet."

"From Khavailu (Hwo-luh’ien), an important commercial centre supplying Shansi, for 130 miles to Sze-tien, the road traverses the loess hills…"

"trade between Sze-ch’wan on one side, and Tibet and Western Yunnan on the other."

"In Sze-ch’wan the brine wells are bored to a depth of 700 to 1000 feet, and the brine is drawn up in bamboo tubes by a gin."