Kevin,

I do prefer placing Trophy Rocks on large flat rocks so they are elevated slightly above the ground.  I do this to reduce the amount of dirt deer consume while using the Trophy Rock.  Unless a parasite is present, etc., ingesting dirt won’t hurt deer.  I simply want the deer to get the full benefit of the trace minerals in the Trophy Rock!  Some minerals leach through the soil profile faster than others.  However, deer licking directly on the Trophy Rock will receive the full complement of the trace minerals.

Growing Deer together,

Grant