Yosemite Valley was made famous by Ansel Adams with his iconic black and white photographs. As well as tourists it is also a mecca for climbers. I visited it twice back in the mid-90's, the second time was on a 3 month climbing road trip around the western US. I was climbing well with a very strong partner and we climbed some amazing routes.
I found this video about life as a climbing photographer in the valley. The narration is a bit annoying but the sceanry and cinamatography are fantastic. The camp 4 collective have some other pretty cool stuff on their vimeo site.