MAP 15 - General topographic map showing Middle Taylor Township (1977 USGS). Hinckston Run Reservoir (dam) in at the top right (northeast) corner of the map. Riders Dump (Rosedale) Disposal Area is labeled as “Dump” and the Bethlehem Steel Corporation Rosedale coke plant is present in the bottom left (southwest) corner of the map just to the right (east) of the Cambria City, Minersville section of the City of Johnstown.