The reservoirs that form the chain are , from northwest to southeast : Little Swinburne Reservoir → Hallington Reservoirs → Catcleugh Reservoir → Colt Crag Reservoir → Whittle Dene . The reservoirs that form the chain are from the north-west to the southeast : Little Swinburne Reservoir → Hallington Reservoirs → Catcleugh Reservoir → Colt Crag Reservoir → Whittle Dene .