Stock photography, photos: A woman trail running Stock photos of A woman running during fall colors on the aspens near Sonora Pass, CA. Photograph: © William Stevenson Click for a larger image and more information Keywords associated with this stock photo: Running, runner, run, training, back country, action, active, effort, energy, determination, momentum, motivation, strength, strong, aerobic, desire, freedom, carefree, enthusiasm, sierra, mountains, distance, vista, solo, alone, self reliance, woman, female, fall, autumn, California, sierras, blue, yellow, backlight, backlit, aspens, horizontal, Outdoor, outdoors, outside, sports, sporting, sport, exercise, physical, fitness, outdoorsman, sportsman, adult, young, adventure, adventuring, twenties, 20, s, 30, thirties, one, 1, person, yellow, Sobo