From: Hampton, Minnesota
M = Mountain. In a previous post I mentioned that these "hills" are not very high, but they are very rugged granite and basaltic formations. The highest peaks in the Lake Superior Highlands may only be around 2500 feet above sea level with average elevations are in the 1400-1800 feet above sea level, but I can tell you from driving and hiking this area, that its every bit as nasty as any mountains you have been in, for all its lack of altitude. I know that forest is used to denote rough terrain, but some of these areas really do derserve the designation of mountain.
A little more info on the Iron Mines in Minnesota. There are actually, or were in the time frame of WWII, 3 major Iron Ranges. From South to North, they were the Cuyuna, centered just North of the Brainerd and Mill Lacs Lake area in the towns of Crosby and Ironton. The Mesabi Range, which runs generally NE, for 110 miles, from the towns of Cohasset and Grand Rapids, in the Southwest portion, through Hibbing, Chisholm, and Virgina and finally ending at Babbit in the Northeast. The final range is the Vermillion Range, which runs generally NE for about 30 miles starting at the southern shore of Lake Vermillion and including the towns of Tower, Soudan, Ely and Winton. The Railroad I drew in runs from the eastern most sections of the Mesabi and Vermillion ranges down to the Harbors of Beaver Bay and Taconite Harbor. There is also a line that runs from Beaver Bay down to Duluth.
Looking at the Map again, I realize there was room to drawn in the Minnesota and I will scribble that in after I get home from work tomorrow. Still getting used to the scale. Also, I spelled Rainy Lake, Rainey in a previous post, the correct spelling is Rainy.
As far as the Mackinac Straits, I remember the movement and supply rules regarding straits, but was trying to provide as accurate a picture/depiction of the region as I could. The rail line going across the strait sort of surprised me, as physically, it doesn't exist.