Tieton State Airport (4S6), WA, only 24 NM from Yakima. Folks in other parts of the country might recognize this place from some of CubCrafters' beautiful promotional photos and videos.
What a gorgeous place. I couldn't stay, but the others in our group (the C-170A, the C-185 and the Maule) were setting up camp to watch the meteor shower overnight. It was an unusually hazy day; they tell us it's smoke drifting over from fires in Russia.
If you look very closely you can see the near-midair collision with a large hawk (golden eagle?) at 2:40 in the video.