Schuyler's tactics required Burgoyne to build a road through the wilderness for his guns and troops, a task that took about two weeks. They moved out of Skenesboro on July 24, and reached Fort Edward on July 29, finding that Schuyler had already abandoned it, in a retreat that ended at Stillwater, New York. Before he left Skenesboro, Burgoyne was joined by about 500 Indians (mostly Ottawas, but also Fox, Mississauga, Chippewa, and Ojibwe, as well as members of the Iroquois) from the Great Lakes region under the leadership of St. Luc de la Corne and Charles Michel de Langlade.