I flew from Ulsan to Gimpo, does anyone know where this is..?

I just arrived at Gimpo Airport on a flight from Ulsan.
I was sitting by the window and took some photos, then wondered where this neighborhood is, so I'm posting this.
It looks like two rivers are merging...
I served in the Air Force, and I think there was an airfield nearby.
Shortly after passing that area, the SK Hynix headquarters came into view.
I suspect it might be somewhere in Chungcheong-do, but does anyone have a guess as to where this is?
If it's the 19th Wing, maybe it's near Chungju..