We have rode that loop several times from Minocqua to Houghton to Marquette back down to Minocqua.From Minocqua to Copper Harbor figure around 190 miles depending on the route and about the same mileage from Minocqua to Marquette.Again depending on the route.Depending on the trail conditions its about a 5 to 6 hour ride if the trails are good to each if yaa ride hard and don't grow any roots anywhere.