None of the SGWA trailheads have bear bins/boxes.
There are bears in the area and they can break into your car when parked overnight at trailheads. So don’t leave food items or ice chest in your car. Also don’t leave food wrappers or items the have scent either because Bears have a very keen scene of smell.
It is very rare for a Bear to break into you car. But it is better to be safe then to be one of the rare few that have.
Also Forest Service isn’t responsible for any valuables left in the car that are stolen or vandalized.