United States, Utah, Box Elder, Great Basin: Promontory Mountains, Golden Spike National Historic Site, Big fill loop trail ca 4 miles W of visitor center, ca 3 miles N of Lampo Junction.
41.643068 -112.47693 NAD27
12 376998E 4610988N ; TRS: T11N R6W sec 36 SW of NE SLUT
1402 meters
4600 ft.
Gravelly-clay banks of old railroad grade in Helianthus annuus, Bromus tectorum , Erodium cicutarium, Artemisia tridentata, Gutierrezia satothrae community/