Ключевые слова: alberta, background, balance, balanced, blue, built, cairn, cairns, canada, coastline, edge, flat, forest, group, harmony, heap, hiking, lake, landscape, nature, nobody, outdoors, pile, piles, pyramid, rock, rocks, route, scenery, shore, stability, stack, stacked, stacks, stone, stones, summer, tower, trail marker, travel, two, water, wilderness,