It is believed that the local hillforts at Caesar's Camp (Easthampstead), St Anne's Hill, St George's Hill (Weybridge) and maybe Caesar's Camp (Farnham - beside the Wey) were started in the late Bronze Age ⁽¹⁰⁾.  A Late Bronze Age peg-hole spearhead was found at St Ann's Hill.  See the page on Iron-age Chobham for more information about these hillforts.  Clear indications of a growing military elite come from impressive cavalry swords and shields which also reveal the intimidating nature of the horse-riding Bronze Age warriors.^{1, p95}

In Chobham we see that the barrows are on the ridges, and often on the Parish boundary (neither 'Barrowhills' nor the Maultway barrow lie on the parish boundary but they do align with the parish boundary; it is possible that at some time the corners of the parish was 'nibbled' off).

Was the Parish boundary later set down to align with these prominent ridge-top barrows; or were the barrows originally constructed on tribal boundaries which still survive as modern parish boundaries?  Incredibly it would appear that the latter is possible.  It is noticeable that the barrows do not exactly lie on the parish boundary but are set back slightly.   One would expect that if the parish boundary was laid down later then the surveyors would run it to the centres of these landmarks.  But if the tribal boundary predated the barrows then it would be understandable that the people who constructed the barrows did not build them exactly on the boundary since then they would be partially in their neighbours territory; setting them back slightly from the boundary would be the natural thing to do.  Of course, parish boundaries did not come into existence until the 13th century AD when chapels were promoted to churches and required a carefully defined parish to serve and draw income from.  Before that time our area was divided up into vills or manors.  So it may seem that Bronze-age territorial boundaries became Saxon manorial boundaries which in turn became late medieval parish boundaries.

It is also noticeable that the barrows are located along the boundaries of the further reaches of Chobham: not on the parish boundary where it nears the village centre.   It is understandable that along the valleys, the main axes of habitation, field boundaries and homesteads would be sufficient to clearly define the territorial boundary.  However, at the furthest boundaries, way out on the heathlands, then stronger territorial markers would likely be required.

References:-

1    Hidden Depths, Roger Hunt.  Pub: Surrey Archaeological Society 2002.