rsbob 

Found a road closed to non-vehicle traffic that climbed relentlessly between 12-17%. After I mile I quit due to being totally annihilated. Who knows where it goes since it is not on any maps - but was paved. I am guessing a radio or cell tower way up the mtn-side. What I didn’t count on, on the way up was the descent. Had to stop three times to let the brakes cool since they were almost glowing and was afraid of rapid fade or failure. Total climbing was 1800’.