(27', 1918, PA-15-01) NW of Atglen, West Sadsbury Township, Chester County, PA. Zion Hill Rd. NW 1.0 miles from jct with PA372 (Valley Av.) in Atglen, N. on Zook Rd. 0.2 miles to the barn on the E. side of the road at 107. (N39 57.549 W75 59.286) Photo by Mike MacCarter 6-30-01.