Tuolumne Meadows is the largest of all the campgrounds in the Yosemite National Forest.   It contains 304 campsites for Rvs or tent campers.  And it also contains Bears.  Although we never saw one.  Food storage is mandatory in the park and campers that attract bears can be fined up to $5000 dollars.   If the local wildlife doesn't discourage you then I would highly reccomend this campsite.  It is located at 8500 feet near the Tioga Pass.  The elevation is much higher here then in the valley floor of Yosemite which means a cooler temperature and beautiful views of the meadow.  Nearby Lyell Fork has good fishing for trout.  Reservations are accepted and you should reserve several months in advance as Yosemite is very popular.