Originally Posted by Geek
I've been trying to decide how to rate a Pass's difficulty? I've had many different ideas but none seem to be a "best solution". Perhaps the easiest might be a simple scale of 1 to 4... I am open to suggestions?
Some trail rating ideas here:
A modest proposal: Trail Rating System
From that same thread, here's Gaspipe's list of CO passes he's ridden and his ratings: