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I see some "roll" marks around the two stones in the bottom-middle.
I tagged this as spacecraft or debris. Something in the lower left quarter.
It's the Apollo 17 landing site. http://www.boston.com/bigpicture/2010/01/images_from_the_lunar_reconnai.htmlandhttp://lroc.sese.asu.edu/news/index.php?/archives/138-Apollo-17-Landing-Site.html