Originally Posted by
BillyD
Why would they do that? Golf course?
Hard to tell you for sure without seeing a bigger pic of that specific area. Just a guess...It might be from when they graded the area to build the road that the bike folks are standing on. In the cut/fill process for creating a roadbed through hilly terrain, sometimes you need to grab some additional dirt from somewhere, and hill adjacent to the work area is a typical source.