autumn colors, fall foliage, bridge, railroad, trestle, tornado, weather, ruins, steel, mountains, valley, canyon, state park, pennsylvania, forests, leaf, brown, rock, trees, surrounded, green, gray, daytime, supporting tower, unsoundness, american state, daylight, woods, devastation, district, decay, ruin, woody plant, state, wood, forest, storm, cyclone, railway, vegetation, plant, mixture, windstorm, foliage, mountain, day, plant part, tree, grey, deterioration, alloy, ravine, tower