| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Monte di Cellere, Cellere, Viterbo Province, Lazio, Italy | 42° 31' 54" N | 11° 48' 42" E | 1.7km (1.1 miles) | |
| Casale Rosati, Valentano, Viterbo Province, Lazio, Italy | 42° 33' 50" N | 11° 48' 39" E | 4.6km (2.9 miles) | |
| Mt Saliette, Valentano, Viterbo Province, Lazio, Italy | 42° 33' 47" N | 11° 47' 48" E | 5.1km (3.2 miles) | |
| Latera solfatara, Latera, Viterbo Province, Lazio, Italy | 42° 37' 3" N | 11° 49' 5" E | 10.4km (6.5 miles) | |
| Mezzano (Lago di Mezzano), Valentano, Viterbo Province, Lazio, Italy | 42° 36' 42" N | 11° 46' 10" E | 10.9km (6.8 miles) | |
| Poggio Pinzo (Gradoli pozzolana quarry), Gradoli, Viterbo Province, Lazio, Italy | 42° 38' 16" N | 11° 49' 58" E | 12.6km (7.8 miles) | |
| Montenero Quarry, Onano, Viterbo Province, Lazio, Italy | 42° 38' 34" N | 11° 49' 27" E | 13.2km (8.2 miles) | |
| Trachyte quarry, Gradoli, Viterbo Province, Lazio, Italy | 42° 38' 42" N | 11° 52' 44" E | 14.0km (8.7 miles) | |
| Forcinello carbonatite, Montefiascone, Viterbo Province, Lazio, Italy | 42° 32' 59" N | 12° 0' 0" E | 14.2km (8.8 miles) | |
| Montefiascone caldera, Montefiascone, Viterbo Province, Lazio, Italy | 42° 32' 32" N | 12° 0' 32" E | 14.8km (9.2 miles) | |
| Poggio Bottinello, Pitigliano, Grosseto Province, Tuscany, Italy | 42° 35' 54" N | 11° 40' 45" E | 14.8km (9.2 miles) | |
| Case Collina, Pitigliano, Grosseto Province, Tuscany, Italy | 42° 38' 32" N | 11° 43' 49" E | 15.4km (9.6 miles) | |
| Monte della Croce, Montefiascone, Viterbo Province, Lazio, Italy | 42° 31' 54" N | 12° 1' 33" E | 16.1km (10.0 miles) | |
| Ponte San Pietro mineralisation, Ischia di Castro, Viterbo Province, Lazio, Italy | 42° 31' 23" N | 11° 36' 23" E | 18.3km (11.4 miles) | |
| Monte Iugo, Viterbo, Viterbo Province, Lazio, Italy | 42° 29' 7" N | 12° 3' 13" E | 18.9km (11.7 miles) | |
| Sorano tuff quarries, Sorano, Grosseto Province, Tuscany, Italy | 42° 40' 41" N | 11° 41' 59" E | 20.1km (12.5 miles) | |
| Montauto mine (Montauto deposit), Manciano, Grosseto Province, Tuscany, Italy | 42° 27' 35" N | 11° 35' 56" E | 20.2km (12.6 miles) | |
| Trachyte quarry, Bolsena, Viterbo Province, Lazio, Italy | 42° 38' 29" N | 12° 1' 18" E | 20.4km (12.7 miles) | |
| Campomorto Quarry, Pietra Massa Locality, Montalto di Castro, Viterbo Province, Lazio, Italy | 42° 22' 47" N | 11° 39' 3" E | 21.8km (13.5 miles) | |
| Legarelle (Le Lagarelle), Viterbo, Viterbo Province, Lazio, Italy | 42° 29' 51" N | 12° 6' 16" E | 22.7km (14.1 miles) | |
| Trachyte quarry, Ponzano, Bagnoregio, Viterbo Province, Lazio, Italy | 42° 37' 8" N | 12° 4' 40" E | 22.9km (14.2 miles) | |
| Ponzano, Bagnoregio, Viterbo Province, Lazio, Italy | 42° 37' 16" N | 12° 4' 44" E | 23.1km (14.3 miles) | |
| Tafone Mine, Manciano, Grosseto Province, Tuscany, Italy | 42° 28' 33" N | 11° 33' 16" E | 23.2km (14.4 miles) | |
| San Martino sul Fiora, Manciano, Grosseto Province, Tuscany, Italy | 42° 40' 20" N | 11° 35' 47" E | 25.2km (15.7 miles) | |
| Macchia Casella Mine, La Campigliola, Manciano, Grosseto Province, Tuscany, Italy | 42° 31' 42" N | 11° 30' 40" E | 26.1km (16.2 miles) | |
| La Campigliola, Manciano, Grosseto Province, Tuscany, Italy | 42° 31' 0" N | 11° 30' 0" E | 27.0km (16.8 miles) | |
| Fagianello, Viterbo, Viterbo Province, Lazio, Italy | 42° 23' 40" N | 12° 6' 35" E | 27.1km (16.9 miles) | |
| Castellaccio di Petrignano, Viterbo, Viterbo Province, Lazio, Italy | 42° 22' 4" N | 12° 5' 17" E | 27.5km (17.1 miles) | |
| Pian di San Martino, Vetralla, Viterbo Province, Lazio, Italy | 42° 20' 46" N | 12° 3' 45" E | 27.5km (17.1 miles) | |
| Bagnaia, Viterbo, Viterbo Province, Lazio, Italy | 42° 25' 40" N | 12° 9' 18" E | 28.7km (17.9 miles) | |
Mt Saliette, Valentano, Viterbo Province, Lazio, Italy