Get Your Rocks Off
Did You Know?
Yosemite National Park is home to one of the most famous rock formations in the world: the Half Dome. It is likely that the Half Dome never had another half. What did happen, however, is that an intrusion of granodiorite took place deep underground. As it became exposed to erosion, pressure change caused the rock to crack apart in thin shells, leaving the mountainside clean. This process is also known as exfoliation. (Sierra Club)
See more of Yosemite here.
