Stock photography, photos: A couple hiking at sunset Stock photos of A couple hiking in the Sierra mountains at sunset. Photograph: © William Stevenson Click for a larger image and more information Keywords associated with this stock photo: Backpacking, backpack, backpacker, sunrise, sunset, sun, red, orange, hiking, camping, Wilderness, high country, back country, active, energy, hiking, distance, vista, grandeur, vastness, couples, friends, togetherness, man, woman, evening, sierra, mountains, summer, California, sierras, horizontal, Athletic, athlete, Outdoor, outdoors, outside, sports, sporting, sport, exercise, health, healthy, physical, fitness, outdoorsman, sportsman, adult, young, adventure, adventuring, twenties, 20s, 30s, thirties, 2, two, people, hikers, hike, camping, camp, campers, whit cars