Sierra Granite
The Sierra Nevada is an upfaulted, tilted block of the Earth’s crust. As it uplifted the east-facing escarpment was cut into by the erosive action of wind, rain, temperature change, frost, and ice. Thus a series of steep canyons developed. The current relief of 10K' to 14K' along the eastern slopes of the southern Sierras attests to this great uplift, which is still occurring. (info from Britannica)
Sierra Granite
The Sierra Nevada is an upfaulted, tilted block of the Earth’s crust. As it uplifted the east-facing escarpment was cut into by the erosive action of wind, rain, temperature change, frost, and ice. Thus a series of steep canyons developed. The current relief of 10K' to 14K' along the eastern slopes of the southern Sierras attests to this great uplift, which is still occurring. (info from Britannica)