Later Marching Camps?

[D B Campbell]

As you probably know, Brian, most of the camps we're talking about are enormous. Until recently, there was a consensus that the interiors would be empty, so there was no point in excavating there. Any excavations were limited to a few cuts across the perimeter to check that it looked like Roman work and to confirm the positions (and type) of the gateways.

The chances of finding any dateable material from excavations like these are very slim. (I'm not even certain that the extensive excavations in Kintore temporary camp -- which discovered over a hundred field ovens -- have turned up Roman pottery.)