Washington observed construction of the fortifications through a telescope from atop nearby Buckberg Mountain. Historians also believe he used intelligence gathered from local merchants to get a better idea of the strength of the garrison, the types of watchwords in use, and the placement of sentries – especially on the south side of the point, which could not be seen from Buckberg. During this time he formulated a plan of attack and selected a commander to lead it – Brigadier General Anthony Wayne, commander of the Pennsylvania Line.