All the bunkers at Bandon use native sand.
The sand source in the Bandon Trails bunkers fall into two catagories, as follows:
Holes 1,2,18, and 3,4,5,6,14,15,16,and 17 have sand from where they were shaped in, i.e., they were "just dug."
The bunkers in the forest holes, #7 through #13, have sand from a dune just west of the old entrance road west of #3 fairway.
The sand cap for holes #7 through #13 came from excavations in that same portion of the course. All the remaining holes (1-6,14-18) have no cap, i.e., sand as nature provided.
Cold and clear in Bandon!
Tom