Nice find Recon, and nicely presented. The rail and circular object definitely look like mechanical objects.
Another interesting area looks to me like some kind of tunnel. Interestingly, Shorty crater led scientists to speculate that perhaps it was a volcanic vent and not an impact scar!
Or perhaps an abandoned mine?
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Some kind of rail at the entrance?
Also, notice the strange shadow and circular object.
This is Shorty from above. Notice the void in the side of the crater wall.
-- Edited by Recon on Saturday 4th of August 2012 02:43:42 AM
-- Edited by Recon on Sunday 5th of August 2012 01:09:45 AM