Wednesday, December 29, 2010
Tuesday, July 27, 2010
Flight Back Home
We needed to have the car back at the airport b y 12:00 noon, so had limited opportunity for extra events. Our visit to Dublin was probably the highlight (we were extremely toured-out by this time). We turned off the A1 highway to take a look at Gawler… a thriving centre on the border between the wheat and wine growing areas. Then we made our way to the airport… and here we are… exhausted…. elated… and looking forward to our next holiday.
Dublin looked authentic... surrounded by emerald-green wheat fields |
Monday, July 26, 2010
Exemplary Miner - Roxby Downs loves BHP
Blue Streak Rocket - biggest launched from Woomera |
Over 6,000 rockets were launched from Woomera |
Beautiful views from the lower Finders Ranges |
Pt. Augusta where Leigh Creek coal is burned |
BHP has its environmental impact study approved by State Government and is now with Federal Government. Approval is expected in the next few months. They will then start to remove 300 metres of overburden… a task expected to take 3-years. They will build a mountain range that will tower over any neighboring hills. The wealth they will extract was not stated, but it will probably exceed by many times the current annual GDP for
The technique of Stope mining was interesting. The geologists diamond drill to identify the position and depth of a rich pocket of ore. Tunnels are dug to the base of the selected ore body and transport links are built. The selected mine area takes the shape of an upside down milk carton, with the wedge shape at the bottom being the shoot head that direct the mined ore into the transport. The transport is typically a train (automatically run - no driver). The miners blast above the shoot so that the ore falls downward into the shoot. When the train (or dump truck) turns up, gravity feed is used to move the ore into the transport. The ore is moved to one of two large mining shafts that brings massive volume of ore to the surface. The ore is then fed to a conveyor belt to move it over to the processing plants. (Most of the 2,000 staff and 2,000 contractors are employed in the processing plants.) Underground, the ore is crushed to a fine powder and above ground washed with an acid mix. Copper is the majority of the minerals and it is also the lightest. They use special xanthate reagents to make the copper sulphate hydrophobic (I copied this part from a BHP leaflet) and use a bubbling technique to bring the copper to the surface of the liquid and it overflows into giant electrolysis plants. This is where most of the electric power is used. The plant produces copper with a purity of 99.999% that is trucked out (by Linfox trucks… 93 of them each day).
Power is sent back to Roxby Downs - in a straight line! |
C J Denis lived in Laura in the wheat belt |
Sunday, July 25, 2010
This desert is BIG - and empty
Different pockets of silicon hills had different colours |
Pioneers' houses at Andamooka |
No life in the Breakaway Desert |
Emus lived closer to Adelaide. This one had 5 chicks. |
Saturday, July 24, 2010
Rainfall less than 5-inches pa - You get nothing
Look closely and you will see camel tracks |
The road from William Creek to Coober Pedy was 162 kms of dust, salt beds and gibber desert. I doubt if we saw one animal during the drive and the only birds would have been migrating corellas and tiny finches. The place was deserted. Rainfall was probably less than 5 inches each year. The old sea floor was dead-flat as well as dead of life. Some salt bushes tried in vein to make a go of life. Just outside of Coober Pedy we crossed some riverbeds that had seen some water of late and colorful wild flowers had their moment of glory. We came to see the desert… and we found it all right!
Even a little rain brings rewards |
Our underground motel room. Look at the rock colours |
Joye checks out an historic mine |
Mullock heaps at Coober Pedy |
Large volume of mullock from a small opening to mine |
Friday, July 23, 2010
I've Been Everywhere, Man
Day 4 had an early start… at 7:45 am. We had to make William Creek some 300km away… but that involved tackling some dirt tracks of unknown quality, and taking in several points of interest. We cruised up to Marree, so the first 100 km was easy. Before Marree we stopped at the Strzelecki Track turnoff for a cup of coffee (at Lyndhurst). The Strzelecki Track was founded by Captain Moonlight of cattle duffing fame. You did not need much skill to pinch cattle at night in this part of the world! The cattle would follow you just for a bit of entertainment.
Deserted ruins of Farina Downs |
Dog proof fence to protect sheep from dingos |
The unsealed road was not badly corrugated and we were able to maintain speeds of 90-100 kph for many long stretches. We were pleased to encounter some creeks that flooded the road and were able to slip into 4-wheel drive to enhance the delusions that we were battling all the elements that the desert could throw at us. The desert was deserted. The Oodnadatta Track followed the Old Ghan railway and the only buildings regularly seen were the derelict railway sidings used to top up the water in the steam-trains.
Mound Springs build into mounded hills |
We enjoyed a short stop at Clayton Springs. The early settler was looking for water and knew that artesian springs were common in the area. He sunk his spade into the soil and released a spring that shot 2 metres into the air. He could not stop the flow and it has flooded a swamp some 5 square kms in area that has now been classified as an environmentally important site for the unique range of plants and birdlife that have settled. The site was used by the old Ghan Railway to locate one of its sidings. For a couple of decades, Clayton Springs attracted a range of colorful characters. Now, the area is privately owned and the family maintain the springs as a camping and swimming site to amuse passing tourists, and to protect the historical value of the area.
The average age of the passing drivers must be close to 70 yrs. The increase in the price of petrol has not chased away the grey nomads. They are still everywhere. And when you come across a tourist bus, the average age of the tourist jumps another decade. All these nursing homes must be empty. The oldies are all in the desert in South Australia.
Luxury accommodation at William Creek |
Business cards, hats, thongs decorate the walls of the pub at William Creek |
Anna Creek Station covers about the area of Belgium - the largest cattle station in the world! We were told that it carried 3,000 head of cattle (no sheep) and this drought lightened load is down from the maximum of 6,000 head. These numbers seem small for the largest cattle station in the world. When flying over the station, you can understand the modest carrying capacity. The desert has no grass or saltbush except in the (dry) river valleys. Six people are sufficient to run the place.
After a night that was much warmer and quieter than we expected [one benefit of the cold night - the campers all had to retreat early!] we scraped the ice off our windscreen [3 degrees!] and prepared for our flight. We changed our flight to an earlier time (to make better use of our day) and as a result flew over the Cooper River and Warburton River contributories, and missed out on seeing the painted hill… still a 2-hour flight. Six of us were seated according to weight - to balance the plane - and the pilot then decided there was a problem with his plane! Confidence boosting! However his technician decided it was just a bit of dust on the mechanism somewhere so off we went! Fantastic sights - hard to hear some of the commentary but we saw Donald Campbell’s track area [now covered with water], the pelican breeding ground, lots of other birds, and felt privileged to see the Cooper Creek flowing for the first time in 20 years. The pelican migration was interesting. They eat the perch fish [only a couple of centimeters long] as they are carried down the tributaries. When the fresh water of the tributaries hits the salt water of the lake, the fish are stunned and float to the surface. The pelicans get a free lunch with very little energy [if you ignore the 2,000 klm flight from the east coast.] They nest, to hatch their eggs, on an island in the lake for protection against rats and dingoes. The surface of the big lake is 15m below sea level. Only on the 50 year flood does the water of the North Lake Eyre flow through channels into South Lake Eyre. As we looked down on hundreds of square mile of the lake, we were surprised to be told that it would all evaporate before November. No fauna or flora seems to live in the salt part of the lake. The fresh water carries a brown colour until it mixes with the salt and reflects a smoother viscous blue surface. It is hard to find value to be attributed to Lake Eyre. It is a vast evaporation pan. It accumulates vast amounts of salts [that currently, nobody needs]. It supports no life… no vegetation chooses to grow on its edge. Even tourists take to air rather than dirty their boots tramping the gooey mud of the lake bottom.
Different water colours were intriguing |
Lake Eyre was 70% full. When 100% full, Lake Eyre North floods into Lake Eyre South |
The Cooper River in flow - first time in 20 yrs |
Horses to be used in the Anna Creek Round-up |
Thursday, July 22, 2010
Leigh Creek Coal Mine - Getting Ready for the Carbon Trading Price
Leigh Creek was a 'company town' maintained with terrific infrastructure |
The third day of the tour was a day to recuperate. We slept the night at Leigh Creek . This is the site of South Australia ’s only coal mine. Its sends one train-load per day to Port Augusta (some 500 km away) in 162 trolley-cars that make up Australia ’s longest trains (2.8 km long). We learned all these statistics through meeting a guy who was training to drive the train. He has decades of experience driving coal trains in the Hunter Valley… and has taken up relieving duties at Leigh Creek for a bit of a change. The township of Leigh Creek is a Company Town… all buildings are owned and maintained by the coal company. The old site for the town was changed in 1980 to allow coal to be dug under the old town. The new town was designed and built while the coal mine was owned by the State Government. As a result, the standard of infrastructure in the town is first class. The town has a massive water supply. We went out to the dam this afternoon in search for more yellow-footed rock wallabies (without success). The town parks and street trees are fed from serviced sewerage waste. The 28,000 native trees planted in the town make it an oasis in the desert. The mine has an expected life of 7 more years. The population of 600 will then move on and one thought is that the town will then probably pass to aboriginal ownership.
Loading Coal onto Train |
By-the-way, we did stand by the track to count the 162 trolley-cars of the coal train as it went by. Got up to 35... Looked at the length of the line still to come and decided to accept the facts of the experts… it’s a long train! We were at Copley, (very close to the mine), famous for its Quandong CafĂ©, which serves quandong pie. Unfortunately for us all these native peach tarts had already been consumed by the bus load of tourists who arrived just before we did! Luckily we had already sampled this pie the previous day at Blimnan!
Wednesday, July 21, 2010
Flinders Ranges and its Remarkable Gorges
The gullies were full of river gums taken straight from a Hans Hysen painting |
The lookout at the west of Hawker gave a panoramic view of the ancient sea-bed |
How lucky can you get... we saw the rare 'yellow footed rock wallaby' |
We readied ourselves early for our second day of adventure (Wednesday 21st July). Before breakfast we drove to the local look-out 6km out of town with a glorious view over Hawker and the surrounding plain. We were early enough to catch the local kangaroos on the road and raced a couple for 1 km averaging 40 km/hr, before they took to the side trail (we stayed on route to the Lookout). The steep uphill walk to the lookout was a perfect heart-starter for the day.
Historic sorting yard used by early graziers |
We only had 150 kms to travel to our next accommodation at Leigh Creek … so we had an opportunity to explore the gorges recommended by Mike and Maureen. We headed out towards Wilpena Pound… but took a back road through Arkaba Station and the rolling hills to the west of the Pound - Moralana scenic Drive. The green country was at its best and the colourful ranges made for a picturesque backdrop. The sense of being in the outback was enforced by the enjoyable driving through numerous creek-beds.
150 million years of geological history in a 10km track |
This road took us back onto the main
We started with the youngest rocks with Cambrian fauna and flora… lots of fossils. We then went to the Cambrian/Pre-Cambrian divide where we saw worm holes marked in the rocks. Once we got to rocks aged older than 600 million years, we just had the rocks… no fossils. However, the folds in the rock and their colouring were most dramatic. At one spot we hurried to a stop in a tight turn-off to read the next sign. As we read, we saw movement in the bushes above us and out popped a yellow footed rock wallaby… a species that is quite rare. The animal patiently waited while we took our camera shots then hopped up into the rocky hillside. We felt very fortunate. Our track was pretty rough; so we declined the invitations to branch off into more remote gorges. We continued on our way and saw a few emus. One mother had a clutch of 5 chicks.
Next stop was Blinman where we wandered around the old copper mine before driving through yet another picturesque gorge - Parachina Gorge and back onto the main road.
Monument to the early camel train explorers who left from Beltana Homestead |
We still had plenty of daylight left, so made one last detour for the day. We turned off the main road again towards Beltana, a heritage town (that refuses to die). We accidentally pulled into Beltana Homestead and talked to the lady staff member. She pointed out a monument to the Camel drivers… most of whom [including Ernest Giles in 1875] started their expeditions at Beltana Station. She mentioned the current owner had recently re-consolidated the initial holding to just under 0.5 million acres. A few more kilometers along the road bought us to the old town itself... it looked a sorry sight; not the pioneering village that existed in the day of John Flynn (of flying doctor fame). The road back to the main road was interesting… but did not deliver the excitement of Brachina Gorge, despite seeing lots of evidence of the original Ghan Railway and one dramatic cutting.
Which brings us to the theme of the day… we planned a day of logistics to lay the foundation for fun to follow. What we experienced was one of the best touring days we had ever enjoyed. Our learning from the day… stay flexible… go with the flow… remain open for spontaneous changes in itinerary.
Tuesday, July 20, 2010
Reaching the Outback
Like most travel adventures, this trip has not gone according to plan… in the best possible way. Our plan was to catch a plane to Adelaide , skip up-country as fast as possible and really start our adventure at Marree… the gateway to Lake Eyre . On a previous trip (circa 2005) we had already driven all the way to Wilpena Pound in the Flinders Ranges and had enjoyed the long lonely stretches of desert landscape. Desert is desert, right? Seen one seen them all.
The flight to Adelaide went according to plan… no surprises… Virgin Blue wanted $3 for a cup of tea (that confirmed my view... if you're cheap, its hard to be generous). The seats were cramped but the flight arrived on time. The hire car pick-up went to schedule. Avis trusted us with a 4-wheel drive RAV4. We assumed they knew we were headed for the outback class-E roads.
Our first surprise was that we had difficulty finding the Port Augusta A1 highway out of Adelaide . To Don’s delight, his new "Smartphone" came to the rescue with its mapping service. We were able to follow the blue dot on Google’s map to guide us from deep suburbia right onto the A1. The extravagant price he paid for the phone had paid for itself already already.
On leaving Adelaide , we had to check that we were not just outside Dublin , Ireland , instead of Dublin , South Australia !. The meadows were emerald green. The cows and sheep struggled to walk with expanded waist-lines. The highway was busy with big trucks delivering urgent supplies to keep the economy in top gear. This isn’t the Adelaide area we remembered!
Ruins of Kanyaka Station |
We had 400 km to travel before sun-set, so we restricted our stops. The place of most interest on the first day was Quorn, a small heritage town 60 km south of Hawker (where we spent the first night). Quorn had early aspirations of being the capital of South Australia . This was during the early period of settlement when favourable rainfall made the outback appear to be an agricultural nirvana. When long-term rainfalls were better understood, the Government surveyor drew the Goyda Line that showed areas capable of supporting agriculture rather than grazing. Unfortunately, poor Quorn lay on the wrong side of the agriculture dividing line and its political aspirations were turned to dust… dry dust.
Next morning, we visited the Hawker Panorama. This is a purpose built building with a 360-degree piece of art depicting the view from Devil's Peak at Wilpena Pound. We learned that panoramas are a world-wide phenomenon… with conventions in Japan , Holland and elsewhere. The local Hawker artist (we forgot to record his name) is well regarded on the world stage… and deservedly so… the art was captivating… a must-see next time you pop into Hawker. After the panorama, we were making our way out when the store-keeper said… “come and have a look at this”. he took us to his back room where he had three other pieces of the artist’s work displayed with dramatic lighting and set with supporting diorama effects (e.g. rocks in a river bed in front of a painting of river-gums). We were most impressed - both with the paintings [as above] and the price tags [around $25000 each!].
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