Pywiack Dome is a prominent 600 foot granite dome in Yosemite National Park, located 0.7 miles (1.1Â km) north-east of Tenaya Lake, 4 miles (6.4Â km) west of Tuolumne Meadows and 200 feet (61.0Â m) from the Tioga Road. It is quite near Harlequin Dome, and North and South Whizz Domes are north.
Josiah Whitney the head of California Geological Survey wrote in 1863 about Pywiack Dome in Geology: