Whispering Falls is a small campground right off of OR22, near Mt Jefferson. We stopped here for to camp just one night on a hiking road trip between Opal Creek Wilderness and Sisters. 

There was a small store down the road for supplies, and a creak nearby for hammocking. Sites were basic with fire pits and picnic tables. Great for one night or even a couple if you're out exploring the area during the day-- otherwise not much to do at the site.