Here's how winter climbing grades work. Just when you thought you had grades mastered, here’s another system. Here's how winter climbing grades work. Winter routes are graded for difficulty and ...

Watch as Ghilsolfi and Brooke Raboutou work on the new project. Get the scoop on rock climbing difficulty grades and safety ratings here: what they are, what they mean, and why they're important.

Here's how winter climbing grades work. Just when you thought you had grades mastered, here’s another system. Here's how winter climbing grades work. Winter routes are graded for difficulty and ...