This is El Capitan - very popular with climbers. It's a huge hunk of granite, almost 4,000 feet tall. Here's what's been written about it.

"El Capitan - The Nose
This is the mother of all big wall climbs, possibly the most famous route in the world. And after spending nearly a week tackling its 39 pitches, you'll know why. Technically, it doesn't require a whole lot of skill (it's rated 5.9). But hauling several days worth of supplies makes it a much greater challenge than the rating would imply. This is an extremely popular climb-expect to wait in line a day or two at the base
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