Located approximately one mile from Fort Laramie (formerly known as Fort William), Fort Platte was built by fur trader Lancaster Lupton. Lupton made the post as a competitor to Fort William, and he had previously created Fort Lupton in Colorado. So, Lupton already had a system in place to make these types of ventures successful.
Despite the fort being successful, Lupton had to sell it to Pratte & Cabanne in 1843 due to his own debts. It was eventually abandoned within a few years of the sale.
Historical Marker Inscription
A Trading Post Built By
Lancaster P. Lupton
in 1841,
Stood Fifty Yards to the
North.
Placed By
The Historical Landmark Commission
Of Wyoming
July 1951
Location
42° 12’ 33.210” N, 104° 32’ 15.300” W
1218–1286 WY-160, Fort Laramie, WY 82212, United States
Historical Markers of the World 