This is a distant view taken with a high-powered zoom lens - hence the high degree of compression and the lack of sharpness in the image. The main structure in the middle distance is Force Gill Aquaduct (structure 249200). A small part of the south portal of Blea Moor Tunnel (structure 249300) can also be seen through the aqueduct's arch. The spoil tip for Blea Moor Tunnel, shaft A (this structure) dominates the background (top-right).