Bar refers to where there was once a toll gate, now a service station lies just north of the junction, about eight miles north-northwest of Doncaster.[4] There are three limestone quarries nearby, and archeological digs at the site have turned up materials dating back to the Iron Age and Neolithic eras.Despite the name, archeological evidences suggests historically the area was predominantly an agricultural landscape of enclosures, trackways and fields; rather than being covered with trees.Notable locations within the forest of Barnsdale which are directly related to the Robin Hood legend include Wentbridge and Campsall.There is a Robin Hood's Well, a small monument (apparently designed by John Vanbrugh) lying next to the A1 between the Red House junction and Barnsdale Bar, between the villages of Skelbrooke and Burghwallis.