I would love to have a creek in my backyard. This is Mill Creek Ravine in Edmonton, Alberta, Canada.
Dropped the photo in Photomatix and tonemapped the image. Then used Topaz Adjust to enhance details and contrast.
I blew out the sky and was going to scrap the shot but then I applied a cross-processing technique to the shot and liked the effect. Did a little Photoshop work to create a dark vignette and there you have it. Art.