Actually I don't know the name but your question has prompted me to try to find out. Yes, there are a lot of very steep and rugged gullies in the Mt. Baldy area. I've heard that extreme skiers sometimes ski those gullies.
"As an adolescent I aspired to lasting fame, I craved factual certainty, and I thirsted for a meaningful vision of human life - so I became a scientist. This is like becoming an archbishop so you can meet girls."