High Quality Content by WIKIPEDIA articles! The Walker Lane (also known as the Eastern California Shear Zone) is a geological trough oriented north-northwest-south-southeast, roughly aligned with the border of the states of California and Nevada in the United States. The trough includes Death Valley, the Owens Valley, and Walker, and Pyramid Lakes. Its southern end is just south of Death Valley where it intersects the Garlock Fault, a major left-lateral strike-slip fault. The term "Eastern California Shear Zone" is sometimes used to refer only to the portion of the Walker Lane extending south from the Owens Valley, and continuing across and south of the Garlock Fault across the Mojave Desert where it merges into the San Andreas Fault zone near Indio.