The most challenging motorcycle roads?

[neland]

I once came across this site when I was first riding and found it useful. Now I use it for planning any rides out of teh country or out of state. (I didn't read the whole thread admittedly, sorry if it's a repost)

http://www.bestbikingroads.com/

 

[Junkie]

I'm looking at routes... who here has done Masonite Industrial Road? On Google Maps it appears to be paved for the whole length, although fairly goaty.

 

[dravnx]

Googling around, it looks like it's a private road. I don't know if it's gated though.