Shen-si, China (Google Maps ⧉, OpenStreetMap ⧉)

"…just where the boundaries of Ho-nan, Shan-si, and Shen-si meet."

"According to Oxenham, Historical Atlas, there were ten provinces or sheng (Liao-yang, Chung-shu, Shen-si, Ho-nan, …)"

"It commands the junction of two important approaches to the southern provinces, viz. that from Shen-si down the Han..."

"and Kansan (or Shen-si) the “second best province in the world, and the best populated.”"

"Kansan, see Shen-si"