Ключевые слова: arch, architecture, armor, balance, base, baseplate, becoming, bridge, building, canyon, concrete, construction, dale, development, facilities, foundation, glen, gorge, grade, gradient, grounding, highway, hill, infrastructure, investment, material, motorway, mount, mountain, progress, railroad, ravine, regime, reinforcement, site, stability, steadiness, steel, stone, strait, street, the, traffic, valley,