This photo was taken on the Poudre River around 6:00 PM in April, 2004. The sun was down behind the mountains but it was still fairly light out. I used the smallest aperture I could at f/36 with an ISO setting of 100 which allowed the slow shutter speed of 1 second to get the bluring of the water. I was on a bridge over the water and used a 135 mm lens to focus in on a few rocks in the water. I used a tripod and a remote shutter release.