Making a bend like a flattened S, and crossing the Concourse, it turned around the northern side of the hill on which in the Revolution the Negro Fort was constructed, and, descending to the Mosholu parkway, it went through Mill brook close to its source in a little pond situated near Jerome avenue. Thence curving northeastward, as Van Cortlandt avenue now runs, it passed the site of the old Varian homestead, which is still standing at Rochambeau street (pi. xh), and then continued diagonally across the site of the present Williamsbridge reservoir, in a northeasterly direction, emerging therefrom at the point where the old Boston post-road used to meet the old Gun Hill road.

It ran farther northeast to join the present Gun Hill road, on which line it turned, and followed it INDIAN PATHS eastward across Webster avenue and the New York and Harlem Railroad tracks, to the site of Williamsbridge, where it made a crossing over Bronx river at the place known as Cowangongh (120). The selection of the crossing of the stream at this particular point was doubtless dictated by natural features.