Replying to Do we need a better system for grading trail/backcountry difficulty?

I've been living in Squamish BC the last few months and I am really starting to get into rock climbing - Its a really kickass offseason activity. Anyway, one of the great things about climbing is that all established climbing routes are graded based on their difficulty using the Yosemite decimal system (ex. 5.10a). The first number refers to the "class" of the climb (from simple scrambling to technical free climb), and the second number and letter refer to the difficulty of the climb.The first person to send the climb suggests the difficulty of the route, and then as other members of the community send it, the rating can be confirmed or contested.

I think that the ski and snowboard community could really benefit from having a similar type of system - especially in a backcountry setting. Yes, I know its a different sport and that the difficulty is based heavily on snow conditions .... but STILL - it could be hugely beneficial for backcountry safety and route selection for those who are not as familiar with the terrain. Here in the sea to sky area, the backcountry terrain is nearly endless. Even the stuff accessed from whistler/blackcomb backcountry gates is very extensive. However, it is really hard to tell exactly how challenging a lot of those backcountry chutes, couloirs and bowls are.

How exposed are they? What is the entrance like? How steep? In what conditions can they be skiied safely? Are there cliffs or other hazards that are difficult to spot? Avalanche susceptibility? Ect.

TLDR; I think we should have a more extensive grading system - similar to YDS - for backcountry zones/routes.