Ключевые слова: active, alpine, america, background, beautiful, blue, cloud, clouds, day, earth, eruption, high, hike, lady, lagoon, lake, land, landscape, mexican, mexico, mountain, mountaineering, mountains, national, national park, nature, nevado, panoramic, park, peak, plants, popocatepetl, rocks, sky, snow, snowy, stratovolcano, summit, sun, sun lagoon, toluca, tourism, transmexican, travel, view, volcanic, volcano, volcano ascent, water, white,