THE MINES  at Yerranderie

 

The old "Stamper" in background
                Silver Peak Mine         Yerranderie

 

The Colon Peak Mine

·       Main shaft 460ft long, 15,000ft of levels. 

·       Suction gas plant, five boilers and a concentrating mill.  

·       Approx 45 men were employed.

The Colon Peak Mine was practically the first to start production of payable ore. From 1898-1923 it produced £600,000 worth of bullion (1925 standard).  No capitalisation was ever needed through its entire operation.  The lode was the most favourable on the field; 220 tons of ore yielded 11,328 oz of silver, 25 ozs of gold and 12 tons of lead.  Operations restarted in 1969, new plant installed but shut down before any ore was extracted due to the collapse of the market price.

 

Old engine and winding gear at the Colong Peak Mine

 

Bartlett’s Shaft No 6

Main shaft 700ft long, 11,000ft of levels.

Although adjoined to above mine it had separate surface plant, consisting of a small boiler, winding engine, rock breaker and a 50hp gas engine, as well as a high-speed compressor, which supplied air to the Colon Peak’s Mine for pumps and rock drills.  These mines covered an area of 235 acres.  Boys were paid 10 shillings a day to chip off hard scale in the boilers during holidays.

   

 

Bartlett's number 6 shaft occasionally supplies our washing water

The Silver Peak or Bore Block Mine

Main shaft vertical for 564ft thence at 30 degrees for 560ft, 9.000 ft of levels.

Three boilers, Robey winding machine, milling plant.  60-70 men employed, opened in 1904.  It covered an area of 260 acres and the largest body of ore was discovered at this mine.  In some parts the reef had the extraordinary thickness (Yerranderie standard) of 13ft, containing valuable high-grade ores eg a length of 135ft yielded 20 tons of silver, 1.700 tons of lead and 562ozs of gold.  Prior to 1914 a concentration plant was erected to secure the recovery of the silver, lead and gold.  A safety cage allows visitors to peer into the shaft.

Note extensive environmental damage caused 80 years ago is still a visible scar on the landscape.

 

Looking over the old settlement ponds.

   

The Wollondilly, formerly Starlight/Yerranderie Mine

Main shaft 448ft slope 30 degrees, total length of levels 20,000ft.  Connection made to Burragorang Mine.  Concentrating plant, mills and boilers.  This successful mine opened around 1898 and consistently gave good dividends, at the same time being the best developed mine.  Locally known as Hilders Claim the value of ore produced paid upwards of £20,000 per acre.  It covered 117 acres.  Pure (native) silver was found in the upper of 24 levels.  A vast dump of second grade crushed silver ore can be found here.  

 

Steam engine overlooking the second grade ore dump.

 

The Wonga, formerly Tonalli Mine

Main shaft 850ft long, slope 18 degrees.  Opened in 1911 it had its own winding gear, boiler and air compressor and was worked together with the Burragorang Mine.  The lode on Wonga was unpromising, although some ore assayed as highly as 1.500ozs of silver per ton and 60% lead.  Quartz containing iron pyrites (fool’s gold), silver and lead can still be found around the entrance to the mineshaft.  

 

Ferns around the entrance to the Wonga Mine.

 

The Burragorang Mine

Main shaft 1175ft long, slope 28 degrees, 1,800 ft of levels.  On the same lode as Wollondilly it yielded £100,000 worth of bullion with some very rich ore, 200ozs of silver per ton, 40% lead and some gold, stopped operating in 1922.

 

 

Piece of Pork Mine

Situated on the right hand bank of the Tonalli River only medium grade ore was picked over this 10 acre site.

 


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