 The Powgree Burn rises on Cuff hill in the Gateside area, runs east of the old Speir's school, through Auchengree and Longbar then shortly after runs under Glengarnock railway station.The Pitcon Burn cuts deep into the hillside causing the tree lined gully known as Swinlees Glen, a Nature Conservation Site, and enters the Garnock near its namesake Pitcon House.The Rye Water drains from the area of Muirhead Reservoir and Camphill Reservoir and runs through the old village of Drakemyre to join the Garnock north of Dalry near Brownhill Junction on the main railway line.