I don't know of any in Auburn with tent sites, etc. There is a nice KOA on the Green River near the Boeing Aerospace Center in the Kent valley. The link is www.gocampingamerica.com/seattlekoa/index.html. On the upper Green, there is the Kanasket-Palmer Recreation area (State Parks) off SR 410 which puts you within striking distance of the Green. Other than those, I am out of ideas. Fish on.