Grab this at the end of Tapis Magique (Upper Portion)
at intersection A3. This is the easy way up the mountain.
Boucle Familiale is actually a closed loop. This is the south-west section of the loop, which I prefer to take on the way up. It's longer, but more fun.
The trail continues through intersection A6, where you can continue on "Le Slalom" on your way up the mountain...