在湘、黔、川三省交界的武陵山南端,湖南省的花垣县,贵州省的松桃县和四川省的秀山县在这里成东、南、西三角形接壤。到目前为止,这一三角地带已查明的锰矿储量超过1亿t,约占全国锰矿总储量的五分之一,成为我国目前储量最大、最集中的锰矿区。 80年代以来,随着改革开放政策的深入,这一地区蕴藏的巨大锰矿资源引起了当地政府和国家各级主管部门的重视。近年来,三县政府都把开发锰业列入了各自的重要议事日程。“七五”期间,在冶金部矿山司的关心和支持下,已先后投资建成了花垣锰 At the southern tip of Wuling Mountain at the junction of Hunan, Guizhou and Sichuan provinces, Huayuan County in Hunan Province, Songtao County in Guizhou Province and Xiushan County in Sichuan Province are the borders of the east, south and west triangles here. So far, the manganese ore reserves ascertained in this delta have exceeded 100 million tons, accounting for one fifth of the total reserves of manganese ore in the country and becoming the largest and most concentrated manganese ore area in our country. Since the 1980s, with the deepening of the policy of reform and opening up, the huge manganese resources in the area have attracted the attention of the local government and the competent departments at all levels. In recent years, the three county governments have all included the development of manganese industry in their respective important agendas. During the “Seventh Five-Year Plan” period, with the concern and support of the Mining Division of the Ministry of Metallurgy, it has invested in Huayuan manganese