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Spacecraft nadir point: 51.1° S, 76.8° W

Photo center point: 48.0° S, 73.0° W

Nadir to Photo Center: Northeast

Spacecraft Altitude: 126 nautical miles (233km)
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Image Caption:
S36-152-178: Cerros Colorados Reservoir, Argentina This reser-
voir lies next to the Neuquen River northwest of the Patagonian
city of Neuquen in the desertic Andean foothills. The reservoir
has been divided into two halves by two walls across the narrows.
The different colors of water in each half of the reservoir are
hard to interpret: it may be that muddy river floodwater entered
the upstream (left) part, causing the muddy blue color. Muds ap-
pear to have settled out in the right half, causing a brilliant
blue body of water which is drained off for irrigation in the
Neuquen River bottom, where angular fields can be seen. The
parallel eroded scars, top left, relate to small streams draining
a steep hillside, probably in erodible sandstones.