dsty
Bronze Member
Thnk you SS for those kind words, there's still room for improvement's in the knowledge of drill holes, There's so many different kinds, shape's, from 1/4 inch to 16 inch, from the 1/2 marble size that indicates a trail, to a 1/2 walnut size that seem to indicate rock / boulder with a symbol or used as corner marker, There's probably several hundred's that would fill a book, those that are on a angle seem to indicate a pulling point regardless of size and there may only one in the area, thats when you must use something sturdy to pull with in the hole and some stout fishing line to stright line with go a a couple hundred feet pulling on the anchor point and what you may be looking for is a foot or so under the surface.