Reading the post by Monsterrack reminded me of this object that I found back in the 70's. I assume it is either Paiute or Shoshone. I actually wore it for a day or two until a friend of mine, who was Paiute, told me that it might not be a good idea. So it now rests in my Showcase.
That's a great find. That "ladder" design(as petroglyph researchers call it) is found everywhere it seems. I had a steatite tube pipe from RI that was encircled with ladders.