Figure 51:  Virtual 3D color LIDAR perspective, looking south-west, highlighting finished northeast cut stone corner of historic Furnace Falls Dam.  Although disturbed by the construction trenches and cement work of the later wing walls, the finished edge suggests a former, early 19th century, sluiceway to the north of the recently removed cement Spillway.  The ability to “reinvestigate” the site in geo-referenced 3D color space provided otherwise unavailable access and proximity to areas of the dam too dangerous to approach during the excavation.