Oh damn, I found it, it's still there. It's on the west side of Lyon's Bend Rd, just north of Turtle Point Ln. Below is a pic from Google street level. Wow, looking at it through the winter trees, it's a lot closer to the road than I remember, but I was only ever there late at night and not in winter. From there you could walk up the creek and there was a little pond. I said a little lake before but really it was just a pond.
But we used to climb up into a little attic room in the top of that thing and just hang out, drink a few, burn a few, whatever. And If you got a couple people on that wheel you could get it turning. Trouble was, once you got it going it was hard to make it stop and if you couldn't climb fast enough you'd get dumped into the muck at the bottom and who knew what else. It was all just funny back then though.
So surprised it's still standing.
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Edit: @Thunder Good-Oil , do you know the story behind that old mill?