Camping near St. Helens Climbers Bivouac?

Anybody know if there are areas to camp near the climber's bivouac area, in case the climber's area is full?

I kind of remember open clearcut areas off the main road, but my rememberer is subject to revisionism.

Thank you!

In the past, we just slept in our subaru; cooked on the snow bank. If it is like most NF, primitive camping is allowed anywhere (MSH is a Natiional Monument but admn by GPNF).

If you want to stay at the Bivouac, then go to the outhouse on the back of the paved loop (east side) there is a trail which goes back into the woods. A little known couple of spots back there.
Also just before you reach the Bivouac there is a pull out on your right which people back up into and camp behind their cars in the woods.