Search for "Pot Town, VA". No, not that kind of pot! The town name should be the top result.
Then search for Spanglers Mill, (insert town name here), Va. The sixth link down has the name of the mill and if you click on it, it has coordinates right to the front door.
It's really shouldn't take more than 30-40 seconds to find...
Try it. If that doesn't work for you I'll post the Coordinates.