National Geographic : 1946 Apr
India Information Services Terrace by Terrace, Southern India Miners Shovel Away a River's Banks for Manganese, Steel's Cleansing and Hardening Alloy On the distant road (center) men walk to work. At the right they have left pillars indicating the depth of cut.Steam operators stand near acrushing mill's boiler. The ore may go by cart up the zigzag trail or flow into barges below. Hand labor in Indian manganese mines has little machine competition, yet itturned out amazing wartime tonnages (page 513).