The Land area that drains all the surface water runoff into a stream or river is called watershed.
Watershed aren't located just in mountain,forest or plains but can also be in parking-lots,school-yards,meadows,farm fields, and even your own back yard!
Watershed aren't located just in mountain,forest or plains but can also be in parking-lots,school-yards,meadows,farm fields, and even your own back yard!