The Forest Service closed the campground at Agnew Meadows in June of 2012 due to wind storm damage. Reserve America is saying it is estimated the campground will not reopen until 2014 and one should check scheduling with the Forest Service. The trail head is still accessible, and you can still park your car there, which means you can still get there early or unofficially stay in your vehicle until departing for your trip (which I have personally observed was the norm in September of 2012).
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