(Old Mill) SSW of Laughlintown, Ligonier Township, Westmoreland County, PA. US30 NW 1.1 miles from jct with Mill St. in Laughlintown, SW (left curves SE) on PA381 1.6 miles, NE (left) on Rolling Rock Creek Rd. 100 yds, SE (right) on Fish Hatchery Ln. 0.4 miles to the bldg on the NE side of the road. (N40 12.264 W79 13.135) Photos by Mark Comstock & Larry Baker 4-26-19.