Before revision: Origin of panholes Glacier Point, Yosemite In the Sierra Nevada, California these features were termed weathering pitsMatthes, Francois E. 1930.
After revision: Panholes in granodiorite atNational Park, CaliforniaOrigin of panholes Glacier Point, Yosemite In the Sierra Nevada, California these features were termed weathering pitsMatthes, Francois E. 1930.