河北蓟县锰鑛,发现於民国三十年,沦陷期间曾由日商篠■鑛业株式会社开采时为华北重要锰鑛产区,就产地之分布可分为马伸桥下营及黄崖关二区,前区位县治东北45里,後区位县治北65里,皆有公路通鑛区附近,惟因鑛床深居山腹,运输仍多困难。锰鑛产於震旦纪含锰页岩层之上部,有主要 Hebei Jixian manganese ore, found in the Republic of China for 30 years, during the Japanese occupation Shio Mining Co., Ltd. mining was an important manganese ore producing area in North China, the distribution of the origin can be divided into the Ma Yanshan under the camp and the Huangyaguan District II , 45 km northeast of the county seat of the former district, and 65 county north of the county seat. All of them are near the highway leading to the mining area. However, due to the deep deposit in the mountain, the transportation is still more difficult. Manganese ore in the upper Sinian manganese-bearing shale, there is a major