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Number of informants, localities visited and geographical features of each area
| Survey sites | Informants | Localities | Surface (Km2) | Population |
| Campoo | 107 | 42 | 1012 | 23000 |
| Caurel | 39 | 19 | 100 | 1200 |
| Picos de Europa | 131 | 67 | 1920 | 19900 |
| Piloña | 94 | 51 | 283 | 8600 |
| Montesinho | 90 | 30 | 734 | 7427 |
| Sanabria | 44 | 20 | 2120 | 15000 |
