centred on the section of the Apennines which spans from the northern Sella di Ariano [it] to the springs of the Sele River; the highest peak is Mount Avella...

between which open numerous and easy passes (the most important is the Sella di Ariano) and there flows the river Calore Irpino (left tributary of the Volturno)...

Argentera Arguello Argusto Ari Ariano Irpino Ariano nel Polesine Ariccia Arielli Arienzo Arignano Aritzo Arizzano Arlena di Castro Arluno Armeno Armento...