I have added a stream at this location and connected it to the flow towards Monkstown. It is unclear if the head of this stream actually connects to it or if this is the head of O'Toole's Stream which flows into Scotsman's Bay. There is a second set of rises marked on old maps in Ballinclea which may be the head of O'Toole's, making this mapping correct, but it may not. Unclear at the moment.