From what I heard it used to be a fire station (it's in a really small town) and when that was no more it became a dumping ground for neighbors. I was out there last weekend and I kinda hoped they'd find more bikes that had been stored inside, but it doesn't look like it. There is a lot of stuff out there and a large building, so they're going to be at this for a few more weekends. The only thing I found that interested me was a red rattlecanned (including the cranks) Raleigh missing wheels, a brake lever and a few other things. It felt pretty light (could be because it was missing stuff) but it had cottered cranks. I almost bought it, but I didn't want to mess around with those things, especially not knowing what the frame was.
I might go out there again but I don't know if they've added anything. Component hunting might be a waste if they've been outside for so long.