16      UNION PASS elev. 3600'

            (on Arizona highway 68 between Kingman and Bullhead City, AZ elev. 675')

            The westbound descent from the summit of Union Pass is almost 12 miles of 6% grade with a 45 mph curve at the bottom that is on the outskirts of Bullhead City.  Use caution on this hill.  About ½ mile down from the summit is a sign—"6% grade next 9 miles."  There is a runaway truck ramp 10 miles from this sign and the grade continues another 1¼ miles past the escape ramp and begins to flatten out about the time you go through the 45 mph curve.  (There is a drop in elevation of almost 3000' from Union Pass summit to Bullhead City.)

            The eastbound descent from Union Pass summit is about 1 mile of 6% grade followed by about 4 miles of 4% grade.