SYDNEY (NSW)
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1946 - BERKSHIRE PARK AIRFIELD CIRCUIT
The Birkshire Park track in the Sydney suburb of Penrith was a 3km circuit that ran up and down the of a disused World two sealed airstrip, The racing consisted of motorcycle events and only ran from the 10th of June 1946 until the 27th of January 1947.
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2013 - BERKSHIRE PARK AIRFIELD CIRCUIT LOCATION
The location of the Birkshire Park Airfield circuit has been described as mid-way between Parramatta and Richmond.