From Asiago take the provincial road to Roana and continue until the built-up area of Mezzaselva. From here, take the municipal road on the right, that climbs up Val Martello until you reach the crossroad with the old military road (closed-off to traffic) that climbs up directly to Fort Campolongo. Alternatively, it is possible to continue by car until Casare di Campolongo from where, by taking CAI path n 810, you can easily reach the Fort.