Mount Dana and Mount Gibbs are two extinct volcanoes that lie right on the eastern boundary of Yosemite National Park. Mount Dana is the second tallest peak in Yosemite standing at 13,061 ft. with Mount Gibbs, at 12,779 ft., as the sixth. Together, covered in red, metamorphic scree, they stand out among all the other white, granite peaks in the high country of Yosemite.