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| People looking at the Stromatolite
  (right) at the entrance of Saratoga Springs  | Layered stromatolite produced by the activity of an ancient cyanobacteria. | 
 
| Intrusive Diabase | 
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| Intrusive diabase in dolomite at the entrance of Saratoga Springs | 
| The desert pupfish lives in springs and creeks of the Death Valley. With a length of only about 1.5 inches, these fish can withstand a wide range in water salinity as well as temperature variations of 70°F. There are several species of desert pupfish: Cyprinodon salinus (Salt Creek), Cyprinodon nevadensis (Amargosa pupfish, Amargosa River), subspecies of these fish occupies Saratoga Springs. | 
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| If you look carefully you will be able to find the Cyprinodon in the picture ( at least I've seen them when I took the picture :) | 
by Marcelo Santillan