66021 heads north at Stonehouse (just west of Gretna) on the G&SW with the diverted 6S01 Carlisle Brunthill - Oxwellmains empty cement tanks (diverted due to the WCML being shut at Lamington). The empty tanks should have run north early evening the day before - Fri 22/01 - but due to a unknown issue, these ran north in daylight on the Saturday morning. 23/01/16 09:43