The scale problem is treated in a broad sense, the scale shows in which detail the studies are carried out. In the geomorphology the scale depends on the range of landforms' dimensions. The Earth surface may be considered as a fractal; and with enlargement of scale smaller and smaller landforms come into view of researcher. A system of geomorphological legends applicable to different scales and based on hierarchic classification of landforms should be preferred over a unified legend for all the scales.