René Voorburg has raised concerns over the Pleiades location for Forum Gallorum (http://pleiades.stoa.org/places/246395/), given relevant evidence from the Antonine Itineraries. You can see his comment, and my initial response, at http://pleiades.stoa.org/places/246395/darmc-location-7291.
I'd be grateful if some interested party, who has
local access to TIR Caesaraugusta*, can check pages 117-118 to see on
what grounds it locates Forum Gallorum at Cerro de San Mitiel (Ayerbe)
and whether it addresses the anomalous distance measures René noticed.
Neither René nor I have immediate access to the volume.
Please provide your response by appending a comment to the above
discussion thread. All you need to submit comments to Pleiades is an OpenID. Many thanks!
* TIR Caesaraugusta = Tabula Imperii Romani K-30, Madrid:
Caesaraugusta, Clunia (Madrid: 1993).