English: Weedley Tunnel, Low Hunsley, East Riding of Yorkshire, England.
The western entrance to the short tunnel on the dismantled Hull & Barnsley Railway at Low Hunsley in the Yorkshire Wolds. Officially 'Weedley Tunnel' it has become known as 'Sugar Loaf Tunnel', a name presumably given to it by walkers on the nearby Yorkshire Wolds Way (there are other Sugar Loaf Tunnels including those on the Heart of Wales and the Richmond Vale railway lines). The reason for this nickname is obvious: there's a constant supply of white chalk dust spilling down from the hillside above the tunnel entrance.

The Hull & Barnsley Railway was built in the 1880s together with Alexandra Dock in Hull, to break the monopoly of the North Eastern Railway Company and provide an additional trading route inland from the busy Humber port. The railway didn't last long. Services west of South Howden station were withdrawn from 1st January 1932 and the regular service between Hull and South Howden ended on 30th July 1955, although some excursion traffic continued to use this picturesque route through The Wolds until about 1958. After that only a short section of the railway remained in Hull serving the local chemical works until the 1970s when another short stretch of the line just south of Selby was reopened for delivering coal to the newly built Drax Power Station. The steep-sided cutting through the sandstone and chalk between Weedley Tunnel and Drewton Tunnel later became a quarry, operated by Stoneledge Plant & Transport of Cottingham.