The end of a spot??

We've been hitting the new spot all week, and today we beat it to a pulp. We had 6 people there digging, and it wasn't long before the edges were nearly vertical! Any more access to the layer would require digging off several feet of overburden, so the opportunity cost (to apply a little toothin economics) becomes too great. It all ended with no one finding a meg, but t$ did manage to find a sweet mako. There is still some undug ditch way in the back, but it will have to wait until I'm working :-)