I grew up in vegas and when I was a teenager, me and my uncle went S.W. to a very small town called Cima. Can't remember if it is across the Cali border or still in Nev. I think the direction from town center was N.E. about a half mile, we found an abandoned silver mine shaft (hole). Among the debris from the small shack, we found a few canvas bags that said Cima Silver Mine. My memory is'nt very clear but he said he did "really well" from the mine toward the nearest mountain, N. I thinks. Better results were found the closer we got to the mountain, he said he found a nice bit of gold here and there along runoff areas. I do remember there were some claim markers up the further we went. We spent half a day or so there and always meant to come back. Then life happened and we moved away. There are also large tailing piles I heard about on the other side of Sunrise Mountain, on the Lake Mead side. I don't know if it is worth the trip, just thought I would share.