Original Caption Released with Image: 
This spectacular picture of the Martian landscape by the Viking 1 
Lander shows a dune field with features remarkably similar to many 
seen in the deserts of Earth. The dramatic early morning lighting- - 
7:30 a.m. local Mars time--reveals subtle details and shading. Taken 
yesterday (August 3) by the Lander s camera #1, the picture covers 
100 , looking northeast at left and southeast at right. Viking scientists 
have studied areas very much like the one in this view in Mexico and 
in California (Kelso, Death Valley, Yuma). The sharp dune crests 
indicate the most recent wind storms capable of moving sand over 
the dunes in the general direction from upper left to lower right. 
Small deposits downwind of rocks also indicate this wind direction. 
Large boulder at left is about eight meters (25 feet) from the 
spacecraft and measures about one by three meters (3 by 10 feet). 
The meteorology boom, which supports Viking s miniature weather 
station, cuts through the picture s center. The sun rose two hours 
earlier and is about 30 above the horizon near the center of the 
picture.
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