I chase old grist mills that still have their water wheel active or at least in place. I've been to Babcock State Park in WV, Mabry Mill in VA, Clinton Mill in Clinton, NJ, a couple of mills in VT. Recently I discovered a really nice mill only about an hour south of where I live. In thirty years of living here, I never knew about it although I had driven within half a mile of it on numerous occasions! This past Saturday it finally found it's way onto an SD card in my camera.