If you think nothing is tougher than the Hidden Valley Trail in the Mission Peak area, think again. This is an alternate route which eventually will reconnect to Hidden Valley Trail but it is longer, steeper, and tougher.
There is a short shaded section but most of the way is spent exposed to the sun. This trail can be ridden both ways. The upper part is a tough challenge and the lower part isn't that fun either. The trail surface usually is damaged by cows, making the ride down pretty bumpy.