An example is the way spatial orientation is expressed in various cultures.[2][3] In many societies, words for the cardinal directions east and west are derived from terms for sunrise/sunset. The nomenclature for cardinal directions of Inuit speakers of Greenland, however, is based on geographical landmarks such as the river system and one's position on the coast. Similarly, the Yurok lack the idea of cardinal directions; they orient themselves with respect to their principal geographic feature, the Klamath River.