[citation needed] Judging from those sited in or near the Thames Valley, there is much doubt as to how oval barrows are related to the burials found within them and funerary practices, because there can be a long gap of many years between an original burial and the construction of the barrow.
There is a neolithic oval barrow near the top of Whiteleaf Hill, Monks Risborough, Buckinghamshire (National Grid: SP 822040), which was first excavated by Sir Lindsay Scott between 1934 and 1939 and re-excavated from 2002 to 2006 by Oxford Archaeology (assisted by the Princes Risborough Countryside Group).
The mound is roughly oval, but indented on the north-eastern side, making it somewhat kidney-shaped.
Previously known only from a cropmark, magnetometry and resistivity surveys have produced more detailed information about this unexcavated site, which is on level ground on the flood plain of the River Thames at SU 9170 7935, 250 metres from the river.
Indications of two pits at the centre may represent a split-timber mortuary structure, as was found at Whiteleaf.