This image shows a sheer cliff with a very large ledge in its midst. On that ledge is a large two story structure, the first floor walls of which are facing camera and in shadow. The second floor is a well defined SQUARE and is turned at a precise 45 degree angle to the first floor. CENTERED in the midst of the roof of that squared second floor is an abrupt, sharp circle..a "landing pad" as for helicopters atop tall buildings and on decks of ships.



UP and to the RIGHT of the building structure there is a culvert/conduit or PIPE with an open top which comes forth out of the upper cliff face. There is a fluid

streaming from the end of the "U" shaped pipe and is blurred as it falls down to the ledge. The fluid hits the ledge and erodes a wavy channel to the edge of that ledge and then cascades down the lower cliff face to disperse in a deltaic pattern on a talus cone.
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The deltaic dispersal at the base of the cliff face as well as the fluid's entire path from the conduit can be seen in this larger image, below. The four blue arcs coming from the pipe edge represent four separate flow rates and correspond to the 3 large gouges and 1 smaller gouge eroded away in that ledge beneath the pipe outflow. Note that the fluid streaming from the end of the pipe can be clearly seen as well as the fluids cascading down the lower cliff face and the deltaic dispersal of these fluids forming lobate "tongues". The dispersal of the fluids at the base of cliff clearly shows the change of albedo of the topography to a much lighter tone and the dispersal pattern due to the wet reflectance of the soils there.

NASA's satellite "Mars Odyssey" recently arrived at Mars with one of its primary objectives being -- finding water.  Perhaps they need to only ask those who are already there.

Outflow From Pipe and Dispersion Down Cliff

 

Mapped Image of Same Area
Note That The Outflow Path is More Linear