[3] The hill is formed from Upper Greensand overlaying Gault Clay, the former being comparatively more resistant to erosion and therefore acting as a protective cap.
[4] Like its neighbouring hills, it is a surviving remnant of the greensand and gault layers which once would have overlayed the Lower Lias geology of the surrounding valleys.
[6] Many of the high hills in Dorset, including its neighbour Pilsdon Pen, are sites of an Iron Age hillfort.
However Lewesdon's status as a hillfort is disputed, partly due to its small size and lack of any clear evidence.
He trained with the No.5 Flying School at MOD Sealand, and joined the 37 Maintenance Unit, Burtonwood at RAF High Ercall.
[11] On Sunday the 15th of March 1942 in the early afternoon, Jean entered his Spitifre Mk Vb BL463 (Berar 1), with the intention of delivering it to RAF Bolt Head.
[10] His path crossed over the hill and the nearby village of Broadwindsor, where, at 18:15, an aircraft's engine was heard spluttering.
[11][12] The body was taken to the Bridport Hospital Mortuary and buried at Brookwood Cemetery in Surrey, before being given to Brussels on Thursday October 20, 1949, 219 days after the crash.