Zarahemla LiDAR Mouse-over to magnify The image above is constructed from high resolution LiDAR files. Earthworks are prominent in the southwest corner of the plains area which may be the remains of ancient fortifications (i.e. the Walls of Zarahemla). The berms which extend, on and off for 10 miles, are dated to be definitely prior to 1878 via Dendrochronology. Future archeological excavations will establish a C14 date. The earthworks are not visible with satellite imagery because they are within the tree line. Hover to zoom in.