Cropmarks of a probable prehistoric enclosure, to the south of Scamblesby. Visible as a roughly oval-shaped enclosure, defined by broad ditches of irregular width and with opposed entrances. Cropmarks of a pit approximately 8m in diameter lie a short distance to the north-east. The enclosure could possibly represent the remains of a henge but its irregularity and slightly odd shape make it different in form to known examples. Identified on aerial photography examined as part of the National Mapping Programme. {1}{2} This feature is thought to much more likely be the remains of a levelled Neolithic long barrow, located in the high Wolds. It lies below the crest of a west-facing slope of a spur, situated towards the head of a small valley of a minor tributary of the River Bain. It is aligned on a north-north-west to south-south-east axis, and is an elongated oval enclosure comprising two ditches of very arcuate form. The ditches are asymmetrical. The west arc has a slightly bulbous north terminal and a large pit-like feature at the south end. It lies in a typical long barrow position. It is not considered as belonging to a henge class. The barrow seems to be situated in a slight natural depression. A small pit-like feature lies to the immediate north-east. {3}{4}{5} The feature at this location was scheduled in March 2026. Its interpretation as a probable long barrow was supported by a geophysical survey of the site, conducted in 2018, which confirmed the location of the previously identified and clearly defined cropmarks. The probable long barrow lies to the south of Scamblesby, on the east side of the A153 Scamblesby Hill Road. It is lcoated on gently sloping ground, and takes the form of two curving ditches, aligned north-north-west to south-south-east. It measures approximately 45m by 30m with the long axis running parallel to the contours of the landscape. The ditches are irregular in form and appear not to be complete with breaks at either end. Mapping records internal pits and linear features apparently crossing the barrow, though no visible earthwork components seem to remain. Valuable archaeological deposits will be preserved in the fills of the ditches and any associated features of the long barrow. These will provide rare information concerning the dating and construction of the monument and the sequence of mortuary practices at the site. The same deposits will also retain environmental evidence illustrating the nature of the landscape in which the monument was set. The long barrow forms a group with the wider nationally significant group of long barrows in the Lincolnshire Wolds. {6}