Some of the vines were thicker than my wrist.
See all those luxuriant leaves up in the tree? Uhhh, it's a pine tree. Those are ALL poison ivy leaves.
Ahhh, much better. I only chopped out the vines and leaves to head-height, the rest of it is going to have to die on the tree because it's too high to pull down. Notice I also chopped through some miserable stinking English ivy on the shed in the background too.