(*) Slopes conducive to avalanches are those that have certain conditions of inclination, configuration of the terrain, proximity of the ridge
(**) The characteristics of these slopes are generally specified in the bulletin: altitude, exposure, topography
(***) Strong overload: for example, grouped skiers
Weak overload: for example, isolated skier or mountaineer.
The term avalanche triggering refers to those caused by an overload, mainly by one or more skiers.
The expression spontaneous exit refers to avalanches originated without external action.
Source: Instituto Catalán de Cartógrafa