Spring Valley Station (N39 49 36.2 W114 33 39.6)  http://www.expeditionutah.com/featured-trails/pony-express-trail/nevada-pony-express-stations/

SPRING VALLEY STATION

Though Spring Valley Station was not listed on the 1861 mail contract as a station, and its exact location remains unknown, sources generally agree on its identity as a Pony Express station.  This station did not exist when Richard Burton traveled through the area on October 5, 1860, however, the Pony Express did stop at a site somewhere in the valley.  Constant Dubail or a man named Reynal possibly served as stationkeepers at Spring Valley.  When Pony Express rider Elijah N. "Uncle Nick" Wilson stopped at the station for something to eat, he found two young boys managing operations. While Wilson was there, several Indians stole the station's horses. Wilson reportedly was killed when he tried to stop them.

The Overland Mail Company line maintained a station in Spring Valley until 1869, which also possibly served as a Pony Express stop after July 1861. The Overland station stood on property owned by Reed Robinson in 1976. Foundations exist near a turn-of-the century stone house on the property.  Townley locates the Overland station site within the corrals, southwest of the stone house.  Another theory suggests that the station stood on the present Henroid Ranch, an area that provided a shorter route to Antelope Springs Station through the Antelope Mountains.

http://www.nps.gov/parkhistory/online_books/poex/hrs/hrs7b.htm#126