abandoned track overgrown path path to nowhere railroad track railway track beach colors colours grainy impressions indented light patterns sand shadow textures tire tracks tracks tyre tracks abstract angled angles appearance caterpillar-track continuous-track continuous-tread-band mobility movement propulsion tank-tread track-plates vehicle-propulsion weight-distribution wheels World-War-2-tank-track WWII-tank crop field harvest Nyberg straw summer wheat daffodils electricity rail tram tram track transport trees masts sunshine amtrack caboose crossing intersection poo poo train railroad railroad crossing railroad tracks train train station trains transportation