>How am I wrong?
You stated:
>Think you'll find Mr H that they (long barrows) do actually go a fair ways back but
>that they haven't all been excavated that far.
If Coldswold-Severn type (which is the group that Mr Hamhead quoted samples of) long barrows do actually go a long way back, then you will be able to give us at least one example.
When long barrows are excavated by archaeologists, then all of the barrow is examined. Yes, not all long barrows have been excavated, but a fair sample have been and none of them go a fair way back. Perhaps there is one, unexcavated long barrow out there which goes a fair ways back, but to say that there is would be pure speculation not based on any evidence.
