TomD
You can't snow camp in the established camp grounds because of inadvertent damage done to their summer camps, like tp and tree and plant damage and stuff. Do you have to pack out tp at badger in the winter now? If so then maybe you can't camp in them just cuzz...

All, collecting firewood in the winter is sort of difficult, especially if you can't cut branches and wet snow covered wood doesn't burn too well. The Sierras in general is a no wood fire area so get used to the idea of wearing warm clothes - look at Toms coat in his avatar.
Jim