The Google Earth image below shows the river in the vicinity of the giant boulders, and is paired with a matching lidar overlay for reference to the tracked boulders. This “tracked boulder” example is particularly interesting because it provides direct evidence that the boulders traveled overland to their resting place, likely in one big event. Many Cumberland Plateau slopes are absolutely covered in boulders, but are comparatively gentle (less than 20 degrees) and seem less likely to support rapid and significant boulder travel by slide or rockfall events.