On May 24, 1756, British Colonel Thomas Cresap and his party marched from Fort Cumberland to engage the enemy. Unable to cross the Youghiogheny River, they turned back. Here, they met native American French-Allies and a skirmish ensued. A black frontiersman, whose name is not known, was killed fighting alongside of Col. Cresap. As a testament to his bravery, Negro Mountain was named after him.