I have a shapefile of polygons. What I want to do is take some areas and discard others. For example, I have a map of USA (shapefile). I want to take California only and make another shapefile.

How do I do it?


Select the California polygon using the select features tool. It will turn yellow.

Right click on the layer in the layers panel usually on the left hand side.

Choose Save As.

Make sure "Save only selected features" is ticked.

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