http://www.hows.org.uk/personal/hillfigs/whitelea/whitele.htm
Its lovely up there.. good views over the Vale of Aylesbury... I never thought the cross was very old, but found the link above and it seems to suggest it was origianlly a big phallic shaped boundary marker ...
As Riot Gibbon says "Fantastic place, go and have a look"
http://www.themodernantiquarian.com/site/553
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