Hiking. Fishing. Camping. What about using the parks for, well, being a bad ass. The documentary “Valley Uprising” tells the story of the rock climbers who have dared El Capitan – the 3000 foot granite wall of Yosemite National Park. Nick Rosen is the film’s director. He told Steve Paulson that the story starts back in the 1950s. Before climbing wall gyms. Before it was even legal to climb in Yosemite.