Fort Le Bœuf''' - Credit: Wikimedia Commons
Fort Le Bœuf (often referred to as Fort de la Rivière au Bœuf) was a fort established by the French during 1753 on a fork of French Creek (in the drainage area of the River Ohio), in present-day Waterford, in northwest Pennsylvania. The fort was part of a line that included Fort Presque Isle, Fort Machault, and Fort Duquesne. Read more on Wikipedia
Source: en.wikipedia.org