The Charlton SMM site is position in the district of Coonooer Bridge, located on the border of the Wimmera and Central districts. Larger towns include Charlton to the north, Wedderburn to the east, St Arnaud to the south.

Weather station and telemetry unit of the Charlton soil moisture monitoring site located on the fence line between two paddocks. Soil core from the Charlton paddock, which highlights the gradual change in soil characteristics down the profile. Soil core pulley system to create a one metre soil core, which enables 10 centimetre samples to be taken in the paddock and also enables visual identification of soil layers.