This makes seeing the rivers and catchment areas easier than other maps I'm used to. It also easily highlights features that the sea has cut away in the past.

This makes seeing the rivers and catchment areas easier than other maps I'm used to. It also easily highlights features that the sea has cut away in the past. For example if you search "Isle of Wight" and scroll west, you can see the ridge that runs W-E across the Isle of Wight continuing on the Isle of Purbeck to the west. I knew that a long time ago it was all joined up as land, but this map shows this particular feature more clearly than a geology map.