What you will find on the linked map
- surface water flowlines
- farm dams and lakes
- land surface contours
- terrain slope
- areas of potential inundation.
Using the map for the first time
We recommend that you read the information below, then investigate the map.
You can find your locality by using the search tab in the top left-hand corner of the map. You can also pan and zoom to an area of interest using the + and – buttons next to the search tab or with the wheel on your mouse.
In the top left hand corner are:
In the top right hand corner are icons for:
Information in this map
The layers in the map are derived from modeling, which means that the reliability of each product is variable and will contain some errors. Use this map as a guide, and verify the information using other sources. For more information about salinity visit the Interactive groundwater and salinity map for the south-west agricultural region website.
Digital Earth Australia (DEA) Waterbodies Version 1 (accessed September 2021)
Water bodies are displayed as light blue hashed polygons, this product identifies large surface water bodies which are present more than 10% of the time. This layer includes dams, lakes, rivers, inlets and more. See Digital Earth Australia Waterbodies, Geoscience Australia for more information. Version two of this dataset has become available, however this map is using version one for compatibility reasons.
Land surface contours and slope
Contour lines show the surface elevation in metres above sea level.
Terrain slope indicates the relative steepness of the land surface: white indicating flat terrain and black indicating steep terrain.
The map shows locations likely to experience extended inundation after heavy rainfall. Blue indicates relatively low levels of inundation and red indicates relatively high levels.
Other information on the map
This map can also display: dams with roaded catchments; rocky outcrops; dryland salinity; valley hazard (areas potentially at risk of dryland salinity).
The 'dams with roaded catchments' layer correctly identifies the status of dams approximately 85% of the time. The main purpose of this layer is to help DPIRD estimate the proportion of dams with roaded catchments and where they are situated to guide our support for improved water catchments.
The rocky outcrop layer has a low accuracy and should be used with particular care. Fortunately, ground checking of this layer is simple and straight forward for users hoping to identify potential dam sites.
All of the elevation-based layers (surface water flow, land surface contours, terrain slope and potential inundation) products were derived from mosaicked digital elevation grids of variable quality. As such the quality of the products is variable throughout the mapped area.