“…Consequently, one group regards preferentially environmental impact assessment (EIA) and land-use inventories evaluating only scientific values (e.g. Grandgirard 1999, Rivas et al 1997, Bonachea et al 2005, Coratza and Giusti 2005, while other evaluates not only the scientific quality of the sites, but also their additional values, such as ecological, aesthetic, cultural and economic (Reynard et al 2007). Methods of the most recent group of research (e.g., Bruschi and Cendrero 2005, Serrano and Gonzales-Trueba 2005, Pralong 2005, Pereira et al 2007, besides the quality of the sites, also evaluate their use or potential for use, as they take into consideration accessibility, visibility, present use of the geomorphological interest, present use of other natural and cultural interests, legal protection and equipment and support services, which are very important for tourism development.…”