Patterned

The snow looked very different in the afternoon light.  As the sun lined up with the snow bank, a pattern began to emerge.  Clearly, the snow blower had made these marks, but it isn't immediately obvious to me how.  I'm thinking that it's a slight left/right vibration that did this.

F Number	8.0
Lens ID	LUMIX G VARIO 14-45mm F3.5-5.6
Focal Length	45.0 mm (35 mm equivalent: 90.0 mm)
Exposure Time	1/320
Exposure Program	Manual
ISO	100
Exposure Compensation	0
Flash	Off, Did not fire