Ключевые слова: alp, alpine, alternative, asphalt, austria, blue, canyon, concrete, construction, dam, ecology, electric, electrical, electricity, energy, engineering, environment, generator, green, high, hill, huge, hydro, hydroelectric, industry, majestic, mountain, nature, no people, outdoor, power, production, renewable, reservoir, road, scene, scenery, scenic, sky, speicher, structure, summer, technology, trekking, valley, wall, water, way, zillergrundl, zillertal,