Bourke Base Line Historic Marker - NSW

  Survey Marks


DEG: -30.29714 146.101501
DMS: 30º 17' 49.7" S 146º 06' 5.41" E
UTM: 55 J 6647947mN 413599mE
Altitude: 115m


Address & Contact

Unnamed Road
Bourke NSW 2840
Phone: N/A
Email: N/A
Web: N/A


This Survey Beacon, built in 1915 is the Northern end of an accurately measured Trigonometrical Base Line, 30 km long, which was part of Australians first National Mapping Scheme.

The Southern end of the base is towards Byrock and just off the Highway. The Base Line was laid out in 1911. This Beacon was intervisible with South Base and Moira Trigonometrical Station on Mt Oxley.

The whole process of measurement and check measurement between bases took surveyors more than two months, including 3 weeks to clear the line, defining the alignment and placing pegs every 24 metres.
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Closest Weather Station

TemperatureFeels LikeRel. HumidityDew PointPressureRainfallWind DirectionWind SpeedGusts

Closest Climatic Station

Bourke Airport Aws
Distance from Bourke Base Line Historic Marker 32.35km NW
Mean Max. °C37.335.332.227.922.518.818.421.425.729.432.435.0
Mean Min. °C22.221.618.
Mean Rain mm29.337.340.724.824.526.514.211.317.122.743.340.0

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