The park has three groves of ancient giant sequoia ("Sequoiadendron giganteum") trees; the Mariposa Grove (200 trees), the Tuolumne Grove (25 trees), and the Merced Grove (20 trees).
Mount Lyell sta najvišji točki v parku z višino 3.998 m. Lyell Glacier je največji ledenik v Yosemite National Park in je eden izmed redkih danes ostal v Sierra Nevadi.