Where did they keep the mules in garrison?

[Crispvs]

Just as a small corollary, and perhaps with relevance to the original question, when I was visiting Chesters fort a couple of years ago I was shown a recent geophysical survey which showed a circular feature with a funnel shaped entrance which seems to closely match the well known 'gyrus' feature from the Lunt fort. This was immediately uphill of the bathhouse and occupied the spece between the fort and the bathhouse. Significantly perhaps, the staff at Chesters told me that as far as they knew excavations in the past had been limited to the interior of the fort, its walls, the bathhouse, parts of the 'vicus' and the road running alongside Hadrian's wall. Aside from this they were unaware of any excavations in other areas surrounding the fort, which was why the gyrus had not been discovered previously, even though it is closely surrounded by the road, the fort and the bathhouse. If this is typical for the excavation of forts, then the missing of such a large feature as a gyrus for so long might suggest that there might be other features, including soil/chemical features which have simply not been investigated at many forts, lying just outside the areas normally investigated.

Crispvs