Yes.

Except the drill is not stopped just after. Mr.Tilsley decides how far he wants to drill and most of the time they drill right through the zone to see what's on the other side, because it is possible that some cracks only open up at depths and do not come to surface.

Keep your eye on hole 127, this one should be very interesting and I think it might show us a very long strike length, because it appears to have been drilled somewhat along the strike in zone88 aka Snow White.