Located 8 miles from Bed Tick Station and 10 miles from Box Elder Station on the south side of La Prele Creek and just north of the old Emigrant Road.  http://www.expeditionutah.com/featured-trails/pony-express-trail/wyoming-pony-express-stations/ 

The 1861 Overland Mail Company contract also listed Lapierelle as a passenger/mail station stop, which Bishop and Henderson listed as Lapierelle (La Prele)—a station between Bed Tick and Box Elder. Franzwa also identifies a La Prele Station on his maps, but he does not specifically cite it as a Pony Express site.  http://www.nps.gov/parkhistory/online_books/poex/hrs/hrs6a.htm#63