Hammer Dome, is a granite dome in the Tuolumne Meadows area of Yosemite National Park. Hammer Dome is a bit north, of Cathedral Creek, which has its source, near Cathedral Peak. Hammer Dome is loosely northwest of Fairview Dome, is north of both Medlicott Dome and Pywiack Dome, all three of which are south of California State Route 120, which runs through Tuolumne Meadows to Tioga Pass. North and South Whizz Domes are close.