It's chapter 3 from Roam.
I can think of 3 major and 4 minor splits on the avalanche, think there is a 4th major that i'm yet to spot the entrance too. One of the majors ones even splits into 3, that would be an interesting addition for our version. We could even start the vid up the fireroad and join on where it links just after the shed with someone who started in the shed if we wanted to include more riders. The ending shot of all of us training down the hill and over the bridge at the end would be awsome.
Shame there ain't more splits on the Les Gets 1 track as that even has the jump section at the end, with a decent hip to get that cool end shot.