Geography of the Yosemite area year was 1983 with and the driest year was 1976 with . The most precipitation in one month was in December 1955 and the most in one day was on December 23, 1955. Average annual snowfall is . The snowiest year was 1967 with . The most snow in one month was in January 1993. Geography of the Yosemite area Yosemite National Park is located in the central Sierra Nevada of California. Three wilderness areas are adjacent to Yosemite: the Ansel Adams Wilderness to the southeast, the Hoover Wilderness to the northeast, and the Emigrant Wilderness to the north. The
Geology of the Yosemite area the past couple million years was the primary shaping force of the features (such rapid uplift would have greatly accelerated all types of erosion). Geology of the Yosemite area The exposed geology of the Yosemite area includes primarily granitic rocks with some older metamorphic rock. The first rocks were laid down in Precambrian times, when the area around Yosemite National Park was on the edge of a very young North American continent. The sediment that formed the area first settled in the waters of a shallow sea, and compressive forces from a subduction zone in the mid-Paleozoic fused the seabed