FROM THE RING-ROAD (G.R.A.-GRANDE RACCORDO ANULARE): Take the Cassia bis towards Viterbo up to km 30.700 than take the exit Z.I. "La Celsetta-Campagnano". FROM THE A1 MOTORWAY: Take the exit to the Ring-Road (G.R.A. Grande Raccordo Anulare) towards "Roma Nord", and than follow the indication.