| Definition and classification of mountain areas on the basis of their altitude and of the climate, geomorphologic, economic and infrastructure conditions at different locations. |
| A number of ways of classifying depositional environments exist, but most modern schemes employ a geomorphologic approach. |
| Through such methods, especially when combined with geomorphologic techniques, it is possible to demonstrate that at no time in the past were all areas irrigated. |
| All are related to the presence of large-scale, intact landscapes, both from a geomorphologic and ecological point of view. |
| No information is currently available on geomorphologic feature types in protected areas or by ecozone. |
| Arid and semi-arid landscapes often contain unique geomorphologic features. |
