But first, let’s zoom out. I’m on the River Severn at this point here on the map… But the river actually starts up in the Cambrian Mountains of mid-Wales here, and runs all the way to into ...

But first, let’s zoom out. I’m on the River Severn at this point here on the map… But the river actually starts up in the Cambrian Mountains of mid-Wales here, and runs all the way into the ...