PHOTO 4a, Sector of Landsat image over La Invernada Lagoon test area (some 
km North from Del Maule Lagoon). Vegetation spots in snowed areas indicates 
water springs near volcanic areas. 
  
PHOTO 4b. Sector of Landsat image over the same area, in a colder season. 
Some water bodies remain abnormally uniced near volcanic areas. 
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PHOTO 5 
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