(27', 1918, PA-15-01) NW of Atglen, Chester County, PA. Zion Hill Rd. NW 1.0 miles from jct with PA372 in Atglen, N. on Zook Rd. 0.2 miles to the barn on the E. side of the road at 107 Zook Rd. (6-30-01, N39° 57.57', W75° 59.28') Photo by Mike MacCarter.