This morning was our tour of the Mt Whaleback iron ore mine. At 9:30 we left on a bus which took us into the mine site and to a lookout which provides a great view over the largest open cut iron ore mine in the world.
Mt Whaleback was named by it's shape but since then well over 600ft have been taken off the top and a huge hole dug beside it, so today it bears no resemblance to the back of a whale.
The large dump trucks ("haul packs") carry 240,000kg of ore and have all up loaded weight of well over 400,000kg. They use 380 lt of diesel per hour on idle. The whole mine site uses 5 Million litres of diesel every month and that doesn't include the diesel for the trains. No wonder the mining industry doesn't want a carbon tax!
The ore in this mine varies from high grade (68%) to low grade (60%) all of which is crushed and screened, the mixed together and shipped out at around 65% on 2-3km long trains. The carriages are loaded with 125,000kg each and a train with 230 carriages carries $5 million worth of iron ore. Every day 12 to 14 trains leave this mine site. That $60-$70 million turnover every day.
Mining is an expensive undertaking with wages for haul pack drivers starting at $112,000 per year and train driver around $200,000 per year. OH&S is big and there are many layers of safety to prevent injuries.
At the end of the tour we were allowed to fill a bag with the various type of ore mined on this site. I took a little rock of hematite which appears blue and contains the high grade iron ore. It's a very heavy rock due to the ore's high specific gravity of 4.
After the tour we hitched up the caravan and continued our trip south around lunch time. There are big expansions going on at mines around Newman and the road South of Newman is the main transport link to Perth. The road was stacked full with road trains and oversized loads most of which were travelling to Newman.
However, the widest load we encountered w
as two trucks loaded with haul packs and measuring 6.5 meters wide. They were travelling the same direction as us and believe me, there is not much room left on the road when 6.5 metres are already occupied. With lots of instructions over the radio we managed to sneak past but the overtaking manoeuvre was an adventure by itself.
We tried to go as far South as possible today and, although we only had half a day, managed nearly 600km. Our timing for stopping tonight was very much borderline and relied on twilight as we weren't able to stop before sunset.
The caravan park at Cue had no powered sites available so we rang ahead to Mt Magnet only to find out they were full too. About 5km North of Mt Magnet is a rest area called "The Granites" and we arrived there just as we were loosing light and by the time we parked the caravan it was dark.
Tonight we are the only caravan in this parking area and there is no water or power, but we are not far from Mt Magnet and we do have phone reception.
We are now well below the tropic of capricorn, and today we have had a top temperature of only 24DegC. Driving towards Mt Magnet we have seen clouds for the first time in a few weeks.