This is a closeup of a Mars Global Surveyor image of a hillside that looks to have live vegetation. The formations look like pine trees on a snow-covered hill.

A larger image of this area can be found in the first link below.

MARS MGS IMAGE: PINE TREE HILLSIDE AND CURIOUS SHAPES *PIC*
http://www.surfingtheapocalypse.net/cgi-bin/archive.cgi?read=43891
MARS: ROUGH SPINY PINE BONSAI TREE LIKE VEGETATION
http://www.surfingtheapocalypse.net/cgi-bin/archive.cgi?read=129760
MARS MGS: FOREST OF TREES WITH FULL FOLIAGE & OBJECTS *PIC*
http://www.surfingtheapocalypse.net/cgi-bin/archive.cgi?read=70343
MARS MGS IMAGE OF FOREST STREAM *PIC*
http://www.surfingtheapocalypse.net/cgi-bin/archive.cgi?read=701
MARS CASE FOR LIQUID SURFACE WATER
http://rense.com/general63/marscase.htm
MARS CASE FOR LIVE SURFACE VEGETATION
http://rense.com/general63/surb.htm
MARS: CLEARED LAND NEAR RIVER IN WHAT LOOKS LIKE JUNGLE *PIC*
http://www.surfingtheapocalypse.net/cgi-bin/forum.cgi?read=134108
ARTHUR C. CLARKE IMAGE OF MARS TREES *PIC*
http://www.surfingtheapocalypse.net/cgi-bin/archive.cgi?read=148295