Running from near Potterton Bridge eastwards through Aberford and across the A1 motorway, Becca Banks mark the time when the area was an important place. Because of recent excavations carried out before the A1 was widened (in the late 1990's), it is possible to be more positive about the age and purpose of the banks. The earthworks are thought to have been built rather hastily as defences facing south about the time of the Roman invasion of the north of England. The banks probably were constructed up to 600 years after the earthworks in Barwick-in-Elmet. There does not appear to be any direct connection (either physically or by purpose) between the two sets of earthworks.
The detailed report on the excavations has been published by the West Yorkshire Archaeology Service - A New Link to the Past ISNB 1 870453 26 3. (more details from WYAS)
Also see: http://www.hjsmith.clara.net/3943.htmBecca Banks Map
For climbing info: http://www.ukclimbing.com/databases/crags/craginfo.html?id=1294