cold frost frozen lake landscape park snow snowy tree trees walk white winter bulldozer cab caterpillar clear Clearance hopper machine maintenance manage norway norwegian plough red tracks tractor vehicle wheels foliage ice icy leaf leaves nature outside alps europe glacier high iceberg mountain sky switzerland tourist parks river riverbank usa Wyoming yellowstone national park apartments block building fence field flats live Poland sunny blue cloud July mountains natural peak plateau rock thick 2013 bows christmas decorations graphic illustration presents seasonal snowflakes snowman