This shot of Multnomah falls was at 9:15 after the sun was down. This is why there are no people. It's a 2 shot stitched panoramic. That top of the falls is almost a straight up shot. Angle of view is about 170 degrees vertically. All of these pictures are massively shrunk for the web. This one has a ton of detail on the rocks up high in the full size version.