2-405: Simpson Park is a valley south of Grass Valley, Nevada that contained a Pony Express station location of Pony Express Division Four. This Lander County , Nevada state location article is a stub . You can help Misplaced Pages by expanding it . Grass Valley, Nevada Grass Valley is a census-designated place (CDP) in northeastern Pershing County , Nevada , United States. As of
4-710: The 2010 census the population was 1,161. Grass Valley is located 10 miles (16 km) south of Winnemucca . The CDP is named after the valley in which it lies, a 5-mile-wide (8 km) basin between the Sonoma Range to the east and the East Range to the west. Nevada State Route 294 (Grass Valley Road) runs from Grass Valley into Winnemucca. According to the U.S. Census Bureau, the Grass Valley CDP has an area of 34.5 square miles (89.4 km ), all land. This Pershing County , Nevada state location article
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