Old Priest Grade near Groveland Ca is about the same. There is a bypass for it, (called Priest Grade), but if you are following GPS instructions you can get into trouble. The elevation changes 1540 feet in 2.7 miles. I have been up and down it many times. The bypass is a lot of fun on a motorcycle, (lots of turns). Going East, (uphill), one has to turn off of the main road to get on the old grade. Going West, (downhill), if you do not turn when the main road does, but go straight instead, You better have a good tranny and breaks.
This is from Wikipedia:
https://en.wikipedia.org/wiki/Moccasin,_Tuolumne_County,_California
Priest Grade and Old Priest Grade
Immediately east of town, State Route 120 climbs from about 910 feet (280 m) AMSL elevation to about 2,450 feet (750 m) at Priest Station, California, over a distance of six miles (10 km). Old Priest Grade, a narrower road and predecessor to the current route of SR120, covers the same change in elevation over about 2.7 miles (4.3 km). It is common to see vehicles with smoking brakes descending the old grade. During summer, ambient temperatures can be in the 90~100 °F range. In these temperatures, many vehicles overheat climbing the old grade. Locals tell stories of car accidents in history where the vehicles left the path of Old Priest Grade and tumbled into Grizzly Gulch. The hillsides are sturdy chaparral with thick vegetation. The terrain was so difficult that, in a few cases, the cars and bodies were not retrieved, some locals claim.[citation needed] Construction to widen curves and add guard rails began in July 2010.[5]
