Any idea what this mound of rocks could have been from / for? Just south of Coyle field about 50 yards in from the trail. Was totally camouflaged prior to the 2019 fire. comment on Face Book: "After flying over it many times we drove out to look at it a few years ago. The rocks don't appear to be of local origin. It is located close to a sand road and you could see the depressed ground where a vehicle was used to help place them there. We thought about taking the pile apart to see what might be under it. Too much work and maybe we really didn't want to know."