Sierra Nevada, 1, a mountain range in South Spain, 60 m. in length; lies for the most part in Granada, crossing the province E. and W. in bold, rugged lines, and clad on its higher parts with perpetual snow, whence the name; Mulhacen (11,660 ft.) is the highest peak. 2, A mountain system in California, stretching NW. and SE. 450 m., and forming the eastern buttress of the Great Central Valley; highest peak Mount Whitney (14,886 ft.). 3, A lofty mountain group in Colombia, South America, stretching NE. almost to the borders of Venezuela.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Sierra Morena * Sieyès, Abbé