Ключевые слова: barren, brown, california, cinder, cinder cone, clear, cone, desolate, diagonal, geology, gray, hiking, lassen, lassen volcanic national park, line, mountain, mountains, national park, nature, outdoor, park, peak, peeking, rim, rocks, scenery, sky, slope, smooth, snow, sparse, steep, summer, trail, tree, vast, volcanic, wilderness, winding,