It is not very likely that the motherload is hundreds of kilometers away and really deep. Yes it is right, diamonds are very old and river beds may change but general topography is most likely quite stable especially because this is a very old part of the earth's surface. And also not very likely that motherload is very deep, where should all the alluvials come from if not washed away from the rivers from an area near to the surface. It is right that it is not sure that motherload is on Lulo concession. If you look on the Cacuilo river and its feeder rivers then you see that the majority of it is on our concession and only a small part is outside. So yes it is possible that the motherload is not on our concession but in my opinion the probability that it is on our concession is quite good and higher than 50%. And actually this is the biggest pro argument for Lucapa, about the Cons I have written a lot in the last weeks.
