阿尔戈马钢铁公司乔治麦克劳德铁矿座落在安大略省五湖区的加美边境。1898年在此发现赤铁矿,1900～1919年进行了赫伦露天铁矿的初期开采。1939年赫伦矿恢复生产(第二期),开采菱铁矿,相应改善了烧结工艺以提高矿石的金属含量;旋又增辟维多利亚露天矿,一直采到1949年。1949年转为乔治麦克劳德矿(第三期),全部用地下开采。1956年11月,《加拿大采矿杂志》誉其 Argoma Iron & Steel’s George McLeod Iron Mine is located on the Canadian-American border in the Five Lakes Region of Ontario. Hematite was discovered here in 1898 and the initial exploitation of the Halen open-cast iron mine was carried out from 1900 to 1919. In 1939, the Heron Mine resumed production (Phase II), siderite was mined, the sintering process was accordingly improved to increase the metal content of the ore, and the Victorian open pit mine was added back to 1949. Converted to the George MacLeod Mine in 1949 (Phase III), all mined underground. November 1956, “Canadian Mining Magazine,” reputation