Other explorations subsequently laid open the whole of the Minnesota fields, including the Mesaba, which developed into the world's greatest iron range.

其他勘探随后打开了整个明尼苏达油田，包括发展成为世界上最大的铁矿区的梅萨巴。

My dad grew up in Minnesota in the Iron Range area, and also during the Depression he earned a Gold Star and a Purple Heart serving in World War Two.

我父亲在 Iron Range 地区的明尼苏达州长大，同样在大萧条时期，他在第二次世界大战中获得了金星勋章和紫心勋章。