Entering a canyon, Gansu Province, China, ca.1926

"Entering canyon. Mts. on both sides rise many hundreds of feet perpendicularly. Mt. Stream on left of stone wall at left of picture. My cook walking; my cart behind. (Kansu Prov)"; Mary W. Caldwell was a missionary serving under the American Presbyterian Mission, South in Taichow, Jiangsu province, who took a trip through Gansu province in 1926