Boyd,
I am not aware of a 'logging' operation around there. This is pretty rugged land(lot's of schist geology), and the CGW did have a branch to iron mines SW of Spring Valley. What is not down in the river valley area(lot's of limestone/sandstone bluffs) is 'high prairie' with lots of farming(corn fields). The MILW, C&NW, and CGW all have several small branches/secondary line through the area and may have hauled out logs at one time.
To the east is Winona, MN and at one time it was a large lumber sawing town(until the turn of the century). Most of the lumber was floated down the Chippewa & Mississippi rivers, there was no rail operation feeding the mills. Rail was used to move milled product out of the mills.
Jim