Ключевые слова: america, blue, ca, california, copy space, country, countryside, directions, dirt road, editorial use only, environment, footpath, grass, grassland, green, hiking, hills, information, information panel, land, landscape, map, meadow, mountains, natural, nature, nobody, outdoors, pasture, public land, public park, regional park, rolling, rules, rural, san francisco bay, san jose, santa clara county, scenery, scenic, sierra vista open space preserve, sky, south, trail, united states, usa, valley, walking, winter,