5184x3456pxphoto of a pathway near trees with drop leaves, Run, Trail, photo, pathway, trees, drop, leaves, Pennsylvania, Northampton County, Jacobsburg Environmental Education Center, Jacobsburg State Park, Lehigh Valley, hiking, forest, foliage, walking path, leaf litter, autumn, low light, creative commons, nature, leaf, tree, outdoors, woodland, yellow, season, landscape, footpath, scenics, green Color, HD wallpaper
2736x2808pxphotography of body of water and trees during daytime, Surge, photography, body of water, trees, daytime, Pennsylvania, Northampton County, Jacobsburg Environmental Education Center, Jacobsburg State Park, Run, Lehigh Valley, hiking, creek, stream, waterfall, forest, fog, snow, winter, low light, creative commons, nature, river, tree, water, landscape, scenics, outdoors, autumn, flowing Water, HD wallpaper
6000x4000pxyellow Aster flowers in selective photography, Flowers, River, yellow, Aster, selective, photography, Asheville, Field Office, Office U.S., Fish, Service, environmental education, nature, flower, plant, summer, outdoors, HD wallpaper
5184x3456pxtime lapse photography of river with driftwood during daytime, Pigments, time lapse photography, river, driftwood, daytime, Pennsylvania, Northampton County, Jacobsburg Environmental Education Center, Jacobsburg State Park, Run, Lehigh Valley, hiking, forest, trees, foliage, creek, stream, cascades, rocks, moss, branches, autumn, low light, creative commons, nature, tree, landscape, leaf, outdoors, scenics, water, woodland, waterfall, green Color, beauty In Nature, rock - Object, HD wallpaper
3240x4320pxpathway in middle of rice field during daytime, Path, pathway, middle, rice field, daytime, Pennsylvania, Northampton County, Jacobsburg Environmental Education Center, Jacobsburg State Park, Homestead, Trail, Lehigh Valley, hiking, meadow, field, clouds, stratocumulus, winter, low light, creative commons, nature, rural Scene, grass, outdoors, sky, landscape, agriculture, summer, HD wallpaper
3456x2304pxbullfrog, childhood, environment, environmental education, frog, kids, learning, nature, outdoor, park, petting, wildlife, HD wallpaper
5143x2805pxbrown field under white and blue cloudy sky during daytime, Atmospheric, brown field, white, blue, cloudy, sky, daytime, Pennsylvania, Northampton County, Jacobsburg Environmental Education Center, Jacobsburg State Park, Lehigh Valley, landscape, clouds, cumulus, spring, bright light, creative commons, nature, tree, rural Scene, outdoors, cloud - Sky, autumn, scenics, summer, season, forest, HD wallpaper
