GoWaterfalling’s page on Saxon Falls says (in part):
Saxon Falls is located on the Montreal River just a few miles upstream of Superior Falls, about 10 miles west of Ironwood. The Montreal River forms part of the border between Michigan and Wisconsin so the falls is technically in both states. It can be visited from either side, but both require a bit of work.
Like Superior Falls there is a dam and power plant here and the water is diverted. Unlike Superior Falls there is no visitor friendly viewing area for the falls. The falls are large and complicated. I visited the Wisconsin side where trees obscure most views of the falls. There are more drops than the one pictured. This is the upper drop. The lower drop is best seen from the Michigan side.
Read on for visiting tips!