My father and I were exploring the waterfalls of the New River Gorge area of West Virginia, and this was one of the highlights! Marr Creek Falls can be found fairly easily on a one way road going through the gorge near the New River bridge. It's a tricky climb down, but well worth it! This was a roughly 6 minute exposure, using a Canon 6D, Tamron 24-70 VC, and Lee Big Stopper.