This is one of the options for gaining the summit, a class 4 chimney on the right side of the blocks. This is probably the hardest way to do it. There is an easier crack to the left of this (still class 4) and a 3rd class "leap of faith" type block that involves pulling yourself across a gap.
Page Scores range from 0% to 100%. The higher the score, the higher the perceived quality of the image. Score is not a simple average of votes, but takes into account the number of votes and the power of the voters.
For every object, a hit is registered each time the object's main page is viewed. A user's hits are the sum of all the hits on the objects he or she owns.