Drills in zone 5-8

This is where I spent most of wednesday night. We surveyed the hole drilled by the drill in the foreground, unfortunatly we had to do it in 3 sections because the rock was unstable. doing a hole in sections is a slow job, the drillers pull the rods up so the bit is just below a bad area of rock, the rods keep the unstable rock from falling into the hole, blocking it. We lower out probe down the rods, through the bit and into the rock where we do out survey. When we have finished the first section the drillers pull the rods up to the next section of bad rock and we start all over again and survey down to where we started the first time. We have 4 probes we put down the hole, the first is a dummy that we use to check that the hole is not obstructed and is safe for our other probes, the Z, the XY and the IFG probe. it is a lot of up and down.