Halloween bowl is generally accessed from Schofield, if you can still get up there after the recent snow. It is generally pretty difficult to drive past the first switchback on Slate River, which leaves you pretty low, though I have accessed Baldy that way as well. Sometimes Wash gulch is the best way. Early season is a bit of a crapshoot in terms of which road is the best access. Think snow- it’s a lot easier with a base and the normal winter trailheads 🙂