Where does Your Rain go ?

A watershed is a ridge of land that separates water flowing into different areas.
Here is one of the biggest watersheds on the planet.
Here is one of the biggest watersheds on the planet.
If you live anywhere in the map on the left, rain will flow towards the River Cray.
The Cray rises in Priory Gardens, Orpington and joins the Darent in the marshes outside Dartford.
If you live anywhere on the right hand map, your rain will drain down into the valley of the River Darent.
The Cray rises in Priory Gardens, Orpington and joins the Darent in the marshes outside Dartford.
If you live anywhere on the right hand map, your rain will drain down into the valley of the River Darent.