| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Poggio Pinzo (Gradoli pozzolana quarry), Gradoli, Viterbo Province, Lazio, Italy | 42° 38' 16" N | 11° 49' 58" E | 1.0km (0.6 miles) | |
| Montenero Quarry, Onano, Viterbo Province, Lazio, Italy | 42° 38' 34" N | 11° 49' 27" E | 1.6km (1.0 miles) | |
| Latera solfatara, Latera, Viterbo Province, Lazio, Italy | 42° 37' 3" N | 11° 49' 5" E | 1.6km (1.0 miles) | |
| Trachyte quarry, Gradoli, Viterbo Province, Lazio, Italy | 42° 38' 42" N | 11° 52' 44" E | 4.4km (2.7 miles) | |
| Mezzano (Lago di Mezzano), Valentano, Viterbo Province, Lazio, Italy | 42° 36' 42" N | 11° 46' 10" E | 5.2km (3.3 miles) | |
| Casale Rosati, Valentano, Viterbo Province, Lazio, Italy | 42° 33' 50" N | 11° 48' 39" E | 7.4km (4.6 miles) | |
| Mt Saliette, Valentano, Viterbo Province, Lazio, Italy | 42° 33' 47" N | 11° 47' 48" E | 7.8km (4.8 miles) | |
| Case Collina, Pitigliano, Grosseto Province, Tuscany, Italy | 42° 38' 32" N | 11° 43' 49" E | 8.2km (5.1 miles) | |
| Monte di Cellere, Cellere, Viterbo Province, Lazio, Italy | 42° 31' 54" N | 11° 48' 42" E | 10.9km (6.8 miles) | |
| Sorano tuff quarries, Sorano, Grosseto Province, Tuscany, Italy | 42° 40' 41" N | 11° 41' 59" E | 11.9km (7.4 miles) | |
| Poggio Bottinello, Pitigliano, Grosseto Province, Tuscany, Italy | 42° 35' 54" N | 11° 40' 45" E | 12.7km (7.9 miles) | |
| Trachyte quarry, Bolsena, Viterbo Province, Lazio, Italy | 42° 38' 29" N | 12° 1' 18" E | 15.8km (9.8 miles) | |
| Forcinello carbonatite, Montefiascone, Viterbo Province, Lazio, Italy | 42° 32' 59" N | 12° 0' 0" E | 16.5km (10.3 miles) | |
| Montefiascone caldera, Montefiascone, Viterbo Province, Lazio, Italy | 42° 32' 32" N | 12° 0' 32" E | 17.6km (10.9 miles) | |
| Monte della Croce, Montefiascone, Viterbo Province, Lazio, Italy | 42° 31' 54" N | 12° 1' 33" E | 19.4km (12.1 miles) | |
| San Martino sul Fiora, Manciano, Grosseto Province, Tuscany, Italy | 42° 40' 20" N | 11° 35' 47" E | 19.6km (12.2 miles) | |
| Trachyte quarry, Ponzano, Bagnoregio, Viterbo Province, Lazio, Italy | 42° 37' 8" N | 12° 4' 40" E | 20.4km (12.7 miles) | |
| Ponzano, Bagnoregio, Viterbo Province, Lazio, Italy | 42° 37' 16" N | 12° 4' 44" E | 20.5km (12.7 miles) | |
| Morone Mine (Selvena Mine), Castell'Azzara, Grosseto Province, Tuscany, Italy | 42° 45' 19" N | 11° 37' 44" E | 21.6km (13.4 miles) | |
| Ponte San Pietro mineralisation, Ischia di Castro, Viterbo Province, Lazio, Italy | 42° 31' 23" N | 11° 36' 23" E | 21.7km (13.5 miles) | |
| Siele mine, Castell'Azzara, Grosseto Province, Tuscany, Italy | 42° 47' 18" N | 11° 39' 44" E | 22.4km (13.9 miles) | |
| Siele Mine (Siele - Carpine Mine), Piancastagnaio, Siena Province, Tuscany, Italy | 42° 47' 20" N | 11° 39' 44" E | 22.4km (13.9 miles) | |
| Catabbio-Fontanelle cinnabar deposit (Catabbio cinnabar deposit), Catabbio, Semproniano, Grosseto Province, Tuscany, Italy | 42° 42' 4" N | 11° 34' 15" E | 22.6km (14.0 miles) | |
| Catabbio, Semproniano, Grosseto Province, Tuscany, Italy | 42° 42' 2" N | 11° 34' 9" E | 22.7km (14.1 miles) | |
| Cortevecchia Mine, Semproniano, Grosseto Province, Tuscany, Italy | 42° 44' 18" N | 11° 34' 53" E | 23.6km (14.7 miles) | |
| Le Solforate Mine (Solforate Rosselli Mine), Piancastagnaio, Siena Province, Tuscany, Italy | 42° 47' 51" N | 11° 38' 50" E | 23.9km (14.9 miles) | |
| Monte Iugo, Viterbo, Viterbo Province, Lazio, Italy | 42° 29' 7" N | 12° 3' 13" E | 24.4km (15.1 miles) | |
| Abetina-Argus Mine, Piancastagnaio, Siena Province, Tuscany, Italy | 42° 48' 7" N | 11° 38' 44" E | 24.4km (15.2 miles) | |
| Saturnia, Manciano, Grosseto Province, Tuscany, Italy | 42° 40' 18" N | 11° 31' 26" E | 25.4km (15.8 miles) | |
| Selva, Santa Fiora, Grosseto Province, Tuscany, Italy | 42° 47' 37" N | 11° 35' 58" E | 26.2km (16.3 miles) | |
Montenero Quarry, Onano, Viterbo Province, Lazio, Italy