Apologies for getting this posted late but here you go: the December peak is Red Mountain, a cinder cone down south of Big Pine. The term "peak" is used very loosely here, about as loose as the volcanic rock rubble you will be scrambling through should you choose to accept the mission.
The start/finish area is Tinemaha Campground. To get there head south on 395 past Big Pine and Crater Mountain and turn right on Fish Springs Rd. Go approximately 2 miles and veer right (onto what may or may not be signed as Birch Creek Rd.). Continue another 2+ miles to Tinemaha Campground. The roads are paved until just before you get to the campground.
The route you choose is entirely up to you as there are no real trails or roads up to the top. There are however "lines" that are much better than others :). Once on top you must do a lap around the crater rim back to where you "summited" before heading back down to the campground.
If you have any questions on the directions for getting there, etc. stop in the store and Karen can give you a bit more beta on one of her "backyard" favorites.
Good Luck and Happy Holidays!