I went up to Helen Georgia about an hour away from Duluth. I visited a working water driven grist mill. They had a single turbine operational. I had to leave shortly after I arrived; I became very jealous of the owners. Then I hiked about 5 miles. At about 2.5 miles there was a very nice secluded waterfall at Raven Cliffs. I am planning my next trip up there in a few weeks.