Mount Wallbrook Gold Mine (Redbrook; Eleven Bells; Red Flag; Crusader), Yarri Goldfield, Menzies Shire, Western Australia, Australiai

Regional Level Types
Mount Wallbrook Gold Mine (Redbrook; Eleven Bells; Red Flag; Crusader)	Mine
Yarri Goldfield	Ore Field
Menzies Shire	Shire
Western Australia	State
Australia	Country

The Mount Wallbrook Gold Mine is 15 kilometres south of the Yarri Battery, and 12 kilometres south south-west of the Edjudina Station homestead. Until recently the site was a tiny open pit and scattered collection of shafts from the early Twentieth Century. Over the last year or two, Saracen have developed an open pit at the site as part of its Carousue Dam Project. Its processing plant is some 40 kilometres to the south, and Saracen have developed several gold mines in a 90 kilometre stretch north, as far as the Red October mine on the shores of Lake Carey.

The Red Flag, Redbrook, Eleven Bells and Crusader were adjoining historic leases at the location. Historically the total of these leases was called Mount Wallbrook after a nearby hill. Saracen has chosen Eleven Bells for the name of its modern mine, although the Mount Wallbrook name is still commonly used. The two open pits largely swallow all the above leases and historic workings. Access is difficult and not recommended as it is an active gold mine.

Said to have been developed by an English company around 1905, before being abandoned. Before 1922, the Wallbrook lease is owned by W. Selbourne, and F. Blythe.

Across 1922 to 1925, Yarri storekeeper, J Dance, put through the Yarri state battery several crushings, including 68 tonnes at 32 dwt, 87 tonnes at 3 dwt, and 115 tonnes at 18 dwt. Dance took out a total of around 800 tonnes at 14 dwt average from the Redbrook lease. Another source states the lease was also active at this time, owned by J. David.

J. Dalton and A. Wainwright prospected the show for several years in the early 1930's. The total for the mine up to 1934 was 872 tonnes of ore for 547 ounces.

Further activity was found in 1936. A Melbourne syndicate called the Australian Gold Flotations have erected a plant capable of processing 50 tonnes of ore daily. There is a three head battery, and a Huntingdon mill, with tailings being stacked until a cyanide plant is erected. Five men had been employed. The syndicate had the mine under option from Dalton and Wainwright.

Prospectors M.W. Scott and P. Overall/J. Grayson are active at the location in 1941. Prospector crushings are reported in 1946 as R.L. Walden and C. Roburg P.A. 1539R Mt. Wallbrook 27 tonnes at 19.2 dwt for 26 ounces of gold. The writer's favourite named prospectors, the Speedie brothers took out 250 tonnes in 1951 for 5 dwt, which they were a bit disappointed with.

The ore body is an extensive dyke of kaolinised porphyry veined with quartz, containing low gold values overall, with some rich veins. Saracen states the gold is found in auriferous quartz veins within metabasalt, that abuts the Eleven Bells Granite. There are multiple veins sets orientated north-east to south-west.

The Mount Wallbrook leases were purchased by Saracen from Jackson Mining in August 2007. Eleven Bells and Redbrook were mined as open pits by Saracen in 2012, accessing the near surface oxide ore. There are planned cutbacks in the two pits during 2016. Mount Wallbrook contains a resource of 12.1 Mt @ 1.0 g/t yielding 401 Koz.

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