Tire in the river. This photo was a lot more effort than I originally thought. I had to walk into the woods a bit and kept sinking about 2 feet into the snow with each step. I originally wanted to get a shot of the river itself, but this nice old tire presented itself.

This time I brought my step up rings and ND filter. I have to use two step up rings to get my 77mm ND filter to fit onto my EF 100mm f/2.8 with 58mm filter threading lens.