4. Define the study area

In this section we're going to define the study area, which is the Shire Valley Alluvial Aquifer.

We can find this transboundary aquifer in the aquifers layer.

In the next subsection we're going to select the Shire Valley Alluvial Aquifer from the aquifers layer. Then we're going to export the selected feature to a new layer in our GeoPackage.