Stock photography, photos: A man running in spring Stock photos of A man running through bugs along a stream in the california sierras. Photograph: © William Stevenson Click for a larger image and more information Keywords associated with this stock photo: running, runner, run, training, action active, effort, energy, perseverance, endurance, enduring, momentum, motivation, strength, strong, challenge, desire, difficult, adventure, freedom, enthusiasm, man, male, solo, morning, evening, alpenglow, spring, summer, stream, river, California, yellow, green, orange, reflections, backlight, backlit, trail, water, meadow, floating, cottonwood down, thistle, hatch, bugs, outdoor, outdoors, outdoorsman, outside, sports, sport, sportsman, recreation, recreational, exercise, exercising, physical fitness, one, 1, person, 20s, twenties, athlete, athletic, vertical, Pres