Pineknot is perfectly situated in Big Bear where you're in the woods but only a short walk to Snow Summit. This allows you a staging area to ride mountain bikes all day at Snow Summit and around the mountain but allows you the convenience to be camped nearby.
The campground has everything a typical campground should have to include restrooms, water, trash bins, and firewood for sale. That's if there's no fire ban in place.
The turnoff to the road to the campground is easy to miss so keep an eye open for the small sign.