(Trollies) at Pennsylvania Trolley Museum N. of Washington, Chartiers Township, Washington County, PA. PA18 (Jefferson Av.) NW 0.4 miles from jct with I70 exit 17 in Washington, N. (veer right) on PA18 (Henderson Av.) 0.9 miles, E. on Oak Grove Rd. 0.5 miles, NE (veer left) on Main St. 0.5 miles, S. (right) on Museum Rd. 100 yds to the bldg on the W. side of the road at 1. Mural is on the front center of the bldg. (N40 12.436 W80 15.311) Photo by Mark Comstock & Larry Baker 5-19-19.