More information : [SE 474242] Circular soil mark, average diameter 180m with a possible entrance to the SW. Possible a henge, comparable in size and situation with the Thornborough circles 36 miles to the NW [SE 27 NE 4]. (1)
Surveyed at 1/2500. This feature lies mainly in two ploughed fields and is visible as a circular bank of very slight profile, now considerably spread by cultivation and partly destroyed by the cutting of a new road. Two slight depressions in the bank to NE and SW probably indicate original opposed entrances, both of which are now bisected by a modern track. APs show markings of an outer ditch in the NW quadrant which is visible on the ground as a superficial depression, but is not surveyable. The interior of the enclosure has a slightly domed appearance, which is probably caused by the ploughing out of an internal ditch. The earthwork has all the characteristics of Atkinson's Class IIa 'Henge', thus favouring its comparison with the Thornborough Circles. (2)
In May 1992 the RCHME: Ferrybridge Henge Project recorded the cropmark of a circular henge ditch, 10m in width, at SE 4746 2424. The ditch has opposed entrances to the ENE and WSW; both east and west terminals of the southern arc are clearly defined, but those of the northern arc are slighted by a farm track. The maximum width of the causeway entrances is estimated as 20m for the ENE and 30m for the WSW. Concentric with the ditch and outside it, a bank approximately 15m wide, also has opposed entrances. Both entrance terminals are recorded on the WSW, and on the ENE that of the southern arc only (the NE quadrant of the bank is now destroyed). Between the inner ditch and the henge bank is a berm approximately 25m wide. Outside the bank is an ill-defined ditch, maximum width 26m, which is recorded on all sides except in the destroyed NE quadrant; this would confirm the previous classification by Authority 2 of a Class IIa Henge. A previous air photo transcription omits the outer ditch (3a). The internal diameter of the henge measures 100-102m; the external diameter of the henge measures 240-260m. The cropmark of a ring ditch (SE 42 SE 61) occupies the full width of the berm at SE 4748 2418, in the SSE sector of the henge. The relationship between the ring ditch and the henge is not clear. A full report and a plan can be found in the NMR archive (Coll UID 922907). West Yorkshire Archaeology Service is undertaking a phased programme of survey and excavation to study and record the threatened landscape setting of the henge monument (3b). Excavation in 1991 of a section across the henge earthwork also confirmed the presence of an outer ditch and revealed details of the bank's construction. (3)
SE 474 246. Earthwork W of Ferrybridge. Scheduled No WY/720. (4)
Cropmark/soilmark remains of the henge at Ferrybridge were recorded as partof a 1:2500 scale aerial photographic survey carried out by the RCHME between 6th and 9th June 1997 as part of the RCHME: Industry and Enclosure in the Neolithic project. The plan of the henge and surrounding features, digital files and report are held by the RCHME (Collection UID: 1082880). (5)
The henge at Ferrybridge is visible as cropmarks and slight earthworks on air photographs. It has been recorded as part of a 1:10000 scale aerial photographic survey carried out by the Lower Wharfedale NMP project. The henge is as described by previous authorities. The ring ditch of the barrow that is located within the henge (described by authority 3 and also in SE 42 SE 61) has also been plotted as part of this survey. For the sake of clarity all the features associated with the henge shall be described in records SE 42 SE 132 and SE 42 SE 133.
(8-9)
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