UPDATE, 1/13/2009 -- This photo is by far my most viewed photo. Almost all of the referrers are search hits for using a polarizing filter. Sadly, I no longer own the camera that took this photo.
Shot with Fuji Provia 100F and a polarizing filter. The polarization gives that really deep blue in the sky. Just to the right here is a big ass flow of water which would have likely resulted in my untimely, water death. Later in the day I was climbing on a rock farther downstream and I made the rangers unhappy. They ended up flying loops around me from a helicopter until I move back to the shore.
I don't know who that dude was...