This page provides an interface for exploring the Melbourne Stream Network dataset, beginning by stream name.

Checking the ‘Show catchment’ option calculates and plots the catchment boundary of the selected stream, and provides an option to download the output as a GIS file.

Clicking on a reach will show its details. Selecting ‘Plot only upstream of clicked reach’ allows calculation of catchment area for that reach.

Select base layers and choose to show the stream, its trib and catchment using ‘Layers’, bottom left.

See this page for tips on using the app, including dealing with the curious case of the Yarra River.

You can find the mwstr version 1.1 app here. It is less accurate in parts of the region, but retained to allow access to old reach codes.