mountainous area definition
mountainous area means an area of changing terrain profile where the changes of terrain elevation exceed 900 m (3 000 ft) within a distance of 18,5 km (10,0 NM);
mountainous area means an area of changing terrain profile where the changes of terrain
mountainous area means the area described in the Victorian Class 1 Oversize and Overmass (OSOM) Route Access Lists;