The road is called Rock House Hollow Road.It is in Sumner County, S.S.W. of Westmoreland, T.N. My friends G.P.S.indicated 22%,with a break of 11% followed by 24%,the total length of the climb is only .3 0r .4 tenths of a mile.I will never fear Locke Creek Road again.No, I have not tried Rock House Hollow on a single speed.....YET!