Sienna

See Siena. Sierra (sē-er'rä). [Sp., 'mountain-range': in South America often used for mountainous and open lands, in contradistinction to plains and forest.] A common name in Peru for the region between the central and eastern Cordilleras of the Andes, drained by affluents of the upper Amazon. It was the principal seat of the Inca civilization. Sierra (sē-er'rä) Blanca. [Sp., 'white mountains.'] The name of three distinct mountain chains in the Southwest. One is in southern Colorado, and contains the highest peak in that State; another is in southeastern New Mexico, and rises to about 12,000 feet; and the third is in eastern Arizona (its highest peaks are not over 11,000 feet). Sierra Capitan a (kä-pē-tä'nä). [Sp., 'captain (i. e. 'chief') mountains.'] A mountain-range in middle New Mexico, having an elevation of over 10,000 feet. It lies between the Pecos River and the Rio Grande.