Ключевые слова: agriculture, america, attraction, best, california, car, crossing, danger, day, daylight, example, food, grapes, grapevine, green, growing, helena, landscape, level, locomotive, napa, outdoor, popular, rail, railroad, reaching, relaxing, road, romantic, rural, safety, sky, soil, st, state, station, sun, tourism, tourist, train, transportation, tree, unique, usa, valley, vine, vineyard, wine making, yountville,