Any idea what is causing the flattened areas?

• by A_Snail

  Posted January 10, 2013 8:43 AM

• by A_Snail in response to A_Snail's comment.

  All the flat lines are parallel and seem to cut through the landscape. Dust devels?

  Posted January 10, 2013 8:45 AM

• by Wounded_Knee

  similar picture an explanationish here

  http://talk.planetfour.org/#/boards/BPF0000001/discussions/DPF000001k

  Posted January 10, 2013 10:28 AM