Johnson Peak is the highest mountain, in Tuolumne Meadows, Yosemite National Park.

[2] Johnson Peak is made of eroded granite.

At 85 Ma, the Johnson Granite Porphyry is the youngest granite rock in the Yosemite National Park, though the entire peak formed beneath the Earth's crust.

[3] Despite it being a fairly easy hike, Johnson Peak climbed less frequently than its many neighbors.

Marshall named Johnson Peak, in the 1890s, to honor a teamster and guide in his survey party, with Professor Davidson.