v-d spur hill ridges of pirin mountains valley. a zig zagging fluvial valley that interlock or overlap in a staggered manner

alps angle backgrounds beauty bend cliff cloud concave convex cook curled curve destinations effect environment eroded erosions european extreme famous feature fluvial formation glacier heritage high highland highlands hiking hill himalayas interlocked interlocking intersection islands land landscape lateral meadow meanders moraine mountain mountains multilayer nature outdoor panoramic pass peak people pirin place range river road rock scenery scottish shape site sky snowcapped spur spurs surface terrain tourism travel unesco valley view world