Stock photography, photos: A couple hiking in the Sierras Stock photos of A couple hiking beneath North Peak in the California sierras. Photograph: © William Stevenson Click for a larger image and more information Keywords associated with this stock photo: Backpacking, backpack, backpacker, hiking, camping, Wilderness, high country, back country, simplicity, inspiration, action, active, effort, energy, challenge, desire, adventure, freedom, hiking, distance, vista, grandeur, vastness, beauty, couples, man, male, female, woman, sierra, mountains, summer, california, sierras, alpine, snow, horizontal, hike, hikers, camp, camping, campers, Athletic, athlete, Outdoor, outdoors, outside, sports, sporting, sport, exercise, health, healthy, physical, fitness, outdoorsman, sportsman, adult, young, adventure, adventuring, twenties, 20s, 30s, thirties, mull sutp