Pine trees on Mars?

IMG_20170901_135958.jpg Another old, downed pine trunk Thumbnails The Sierra sits over on the other side of the valley Another old, downed pine trunk Thumbnails The Sierra sits over on the other side of the valley Another old, downed pine trunk Thumbnails The Sierra sits over on the other side of the valley Another old, downed pine trunk Thumbnails The Sierra sits over on the other side of the valley Another old, downed pine trunk Thumbnails The Sierra sits over on the other side of the valley