However, the most recent changes to the County boundary that are not shown (Berkshire, Buckinghamshire and Surrey County Boundaries Orders of 1991 and 1994) leave a certain fog over that small portion of the County to the north.

• 但是，没有在这个地图显示的最近一次郡界改动（根据《1991年及1994年伯克夏郡、白金汉郡及萨里郡郡界法令》），使得泰晤士河河北的一小片郡域变得相当模糊。